Gary D. Pennington v. Commissioner of Social Security , 652 F. App'x 862 ( 2016 )


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  •            Case: 15-14254   Date Filed: 06/17/2016   Page: 1 of 26
    [DO NOT PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________
    No. 15-14254
    Non-Argument Calendar
    ________________________
    D.C. Docket No. 3:14-cv-00027-JRK
    GARY D. PENNINGTON,
    Plaintiff-Appellant,
    versus
    COMMISSIONER OF SOCIAL SECURITY,
    Defendant-Appellee.
    ________________________
    Appeal from the United States District Court
    for the Middle District of Florida
    ________________________
    (June 17, 2016)
    Before WILSON, ROSENBAUM and FAY, Circuit Judges.
    PER CURIAM:
    Case: 15-14254     Date Filed: 06/17/2016   Page: 2 of 26
    Gary D. Pennington appeals the district judge’s affirming the Social Security
    Administration’s denial of his application for Social Security income (“SSI”), 
    42 U.S.C. § 1383
    (c)(1), (3). We affirm.
    I. BACKGROUND
    Pennington filed an application for SSI on February 1, 2010, and alleged a
    disability onset date of January 2, 2006. He maintained he was disabled because of
    back problems and cuts to two fingers on his left hand. His application was denied
    initially and upon reconsideration. Through counsel, Pennington requested and
    was granted an administrative hearing before an administrative law judge (“ALJ”).
    A.    Documentary Evidence
    1.     Medical Records
    In January 2001, Pennington, a resident of Bunnell, Florida, was transported
    to the emergency room at Memorial Hospital in Orlando, after being struck in the
    right eye with a nail. The Veterans Administration (“VA”) medical records show
    Pennington received follow-up care for this eye injury several times between
    January and March 2001 and came to the VA with another eye injury in February
    2002. On July 2, 2002, Pennington presented to the emergency room at Memorial
    Hospital and complained of cramping in his hands. The x-rays taken on the same
    date showed osteoarthritis of several joints in Pennington’s right hand.
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    In July 2003, Pennington was treated at Halifax Medical Center in Daytona
    Beach for a laceration to his left-middle finger, which partially lacerated a tendon
    in the finger. Pennington returned to Halifax Medical Center in October 2003 with
    a laceration to his left-ring finger, which tore one of his tendons. On both
    occasions, Dr. Richard Tessler, Pennington’s treating physician, was able to repair
    the wound.
    On February 8, 2010, Pennington was seen by Dr. Shrimani Reddy at the
    VA in Daytona Beach outpatient clinic. Dr. Reddy’s notes show Pennington was a
    new patient and had stated he was not seeing any doctors outside of the VA.
    Pennington presented with chronic lower back, hand, and knee pain as well as
    muscle spasms. Dr. Reddy assessed Pennington with chronic low-back
    pain/arthralgias and muscle spasms; he prescribed naproxen and methocarbamol.
    Dr. Reddy also noted Pennington was experiencing stress secondary to his
    financial situation and ordered x-rays of Pennington’s spine and right hand. The
    x-rays revealed severe degenerative disc disease and osteophytosis of the lower
    thoracic and upper lumbar spine as well as degenerative changes involving the
    base of the thumb and interphalangeal joints that were suggestive of inflammatory
    osteoarthritis.
    In April 2010, Pennington was referred for and received an eye exam. He
    had scar tissue on his right eye from his previous nail injury, and his vision in that
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    eye was not correctible to 20/20 because of the scarring. Pennington received a
    new prescription and was issued a new pair of glasses.
    In progress notes dated August 12, 2010, Dr. Paul Blackwood at the VA
    stated Pennington’s lungs showed signs of emphysema and recommended a
    pulmonary-function test. Dr. Blackwood further noted Pennington stated he had a
    hernia in his abdomen, but it was not painful; he had experienced occasional chest
    pain from stress; and he experienced shortness of breath upon exertion. In
    addition, Pennington had multiple-joint-degenerative disorder. Pennington’s
    physical exam showed he had full range of motion in his back and tenderness in his
    lower-lumbar spine. Dr. Blackwood noted Pennington was willing to have surgery
    for his hernia, if needed, but stated surgery should be deferred until Pennington
    received a cardiac evaluation. A radiology report dated August 12, 2010, showed
    imaging was taken of Pennington’s chest to evaluate him for emphysema. The test
    revealed mild diffuse interstitial changes in both lungs, which was consistent with
    chronic-obstructive-pulmonary disease (“COPD”).
    Dr. Blackwood’s progress notes dated November 3, 2010, state Pennington
    had complained of occasional chest pain and shortness of breath; Dr. Blackwood
    diagnosed Pennington with COPD. At the November 3, 2010, visit, Pennington
    rated the pain in his hands and lower back as a four out of ten, described the pain
    as chronic, and stated he had been experiencing pain since 1983. Pennington
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    further stated his pain was usually four out of ten and affected his ability to sleep
    and engage in physical activity. He stated the pain was triggered by lifting but was
    at least partially relieved by medication.
    VA records further showed Dr. Blackwood referred Pennington for a
    cardiology-diagnostic procedure, but Pennington did not appear for his scheduled
    stress test in November 2010. Dr. Blackwood also referred Pennington for a
    pulmonary-function test, but Pennington did not appear for his scheduled
    appointment in January 2011. Likewise, Pennington was referred for a physical-
    therapy consultation, scheduled for March 2011, but he did not appear for the
    appointment. The records also showed Dr. Blackwood had prescribed Pennington
    methocarbamol and naproxen for pain. In a letter dated June 28, 2011, Dr.
    Blackwood informed Pennington he was unable to complete a Social Security
    Questionnaire for him, because he was not allowed to complete such physical
    evaluations.
    Pennington underwent a cardiac-stress test on March 23, 2012. He stated he
    had experienced tightness in his chest, dyspnea, and back pain during the test. At
    the test, Pennington experienced occasional premature atrial contractions but no
    sustained arrhythmias. The progress notes showed Pennington’s test was abnormal
    and suggestive of ischemia; consequently, Pennington was referred for a cardiac-
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    catheterization procedure. Pennington was instructed to avoid strenuous physical
    activity.
    2.    Consultative Examinations and Residual Functional Capacity
    Assessments
    Dr. David Carpenter of Ormond Medical Arts Family Practice performed a
    consultative exam on May 4, 2010. Pennington reported a long history of chronic
    lower back, left knee, and hand pain but denied any particular injury or trauma as
    the cause of his symptoms. Pennington told Dr. Carpenter his lower-back pain was
    exacerbated by prolonged sitting, standing, walking, and activity, and his hand pain
    was exacerbated by activity. Pennington also reported weakness and poor grip
    strength in his hands but stated he was capable of performing daily activities
    without assistance. Dr. Carpenter noted Pennington had decreased sensation to a
    pinprick, light touch throughout both hands, and generalized point tenderness
    throughout all digits of both hands. Pennington also had degenerative changes
    throughout the joints of both hands and clubbing of the digits bilaterally.
    Pennington’s grip strength was a 5/5 bilaterally, his fine manipulation skills were
    intact, and he had no difficulty manipulating buttons or opening doors. Dr.
    Carpenter concluded Pennington suffered from osteoarthritis with chronic-bilateral
    hand, low back, and left-knee pain and stated Pennington might have difficulty
    performing work-related tasks involving sitting, standing, ambulation, lifting,
    carrying, and fine manipulation.
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    Sabrina Lichtward, a medical disability adjudicator, performed a residual
    functional capacity (“RFC”) assessment on May 19, 2010. Lichtward determined
    Pennington (1) could occasionally lift or carry up to 20 pounds and frequently lift
    or carry up to 10 pounds, (2) could stand or walk for a total of 6 hours in a work
    day, (3) could sit for a total of 6 hours, (4) was unlimited in his ability to push or
    pull, (5) could frequently climb ramps and stairs, balance, kneel, crouch, and
    crawl, (6) could occasionally climb ladders, ropes, and scaffolds, and stoop, and
    (7) had no manipulative limitations. Lichtward concluded Pennington’s reported
    symptoms were attributable to a medically determinable impairment, and the
    severity of his symptoms and their alleged effect on his functioning were fairly
    consistent with the medical and nonmedical evidence. She further stated
    Pennington seemed mostly credible. Lichtward noted, however, Dr. Carpenter’s
    conclusion concerning Pennington’s possible limitations was somewhat
    contradictory to the findings in his report.
    Dr. Reuben Brigety, a medical consultant, completed an RFC assessment on
    November 2, 2010. Dr. Brigety agreed with Lichtward’s assessment of
    Pennington’s exertional limitations but concluded Pennington only occasionally
    could climb ramps, stairs, ladders, ropes, and scaffolds, and occasionally could
    balance, stoop, kneel, crouch, and crawl. He further determined Pennington was
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    unlimited in reaching, gross manipulation, and fine manipulation but was limited in
    his ability to feel. Dr. Brigety noted Pennington was credible.
    Dr. Charles Kollmer of New Smyrna Orthopedics conducted a consultative
    examination on Pennington on November 22, 2011, and completed a RFC
    questionnaire. Dr. Kollmer listed Pennington’s diagnoses as (1) cervical strain
    with degenerative disc disease, (2) lumbosacral strain with degenerative disc
    disease, and (3) carpo-metacarpal joint degenerative joint disease of the bilateral
    hands. Dr. Kollmer noted Pennington stated his pain was constant and rated it as
    four to six out of ten. Dr. Kollmer opined Pennington had decreased range of
    motion in the cervical spine, spasms of the cervical and lumbar spine, and
    increased crepitation and grinding of the bilateral carpo-metacarpal joints; his
    response to medication was poor. Dr. Kollmer noted Pennington’s anxiety affected
    his physical condition and stated Pennington’s impairments were reasonably
    consistent with his symptoms and functional limitations. Dr. Kollmer stated
    Pennington’s pain would frequently interfere with his work performance. He also
    noted Pennington was capable only of a low-stress job; he explained Pennington
    “was able to perform duties at Home Depot for several weeks [and] also worked
    for the cable company, but found these jobs too stressful.” R. at 515.
    Dr. Kollmer concluded Pennington could sit or stand for only twenty
    minutes at a time, could sit for a maximum of four hours during a work day, and
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    stand for a maximum of two hours; he must be allowed to walk around for five
    minutes of every hour during the work day. In addition, Pennington required a job
    that would allow him to sit or stand at will, and he would need to take ten-minute
    breaks every two hours. Dr. Kollmer further stated Pennington could
    (1) frequently lift less than 10 pounds and climb stairs, (2) occasionally lift 10 to
    20 pounds, twist, bend, stoop, crouch, squat, and climb ladders, and (3) rarely lift
    50 pounds. Dr. Kollmer further opined Pennington had significant limitations with
    reaching, handling, and fingering, and stated his ability to grasp, turn, and twist
    objects was limited.
    3.     Other Evidence
    Pennington’s earnings records showed earnings for the years 1979-1986,
    1988-1990, 1993-1998, and 2001-2002. In no year did Pennington’s earnings
    exceed $16,000, and in eight of the eighteen years for which Pennington had
    covered earnings during all four quarters, his earnings did not exceed $6,500. In a
    pain questionnaire dated March 29, 2010, Pennington stated he had pain all day
    every day and was taking naproxen and methocarbamol to relieve his pain. He
    said he had no side effects from this medication and had not tried any other forms
    of therapy or treatment to relieve his pain. Pennington stated he needed help from
    his girlfriend to perform some daily activities and needed to take breaks when
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    doing yard work. He stated that standing, sitting, and walking all caused pain and
    pressure in his back, ranging from five out of ten to eight of ten in severity.
    B.    Hearing Testimony
    At the February 2012 hearing before the ALJ, Pennington testified he had a
    GED, a driver’s license, and drove two or three times a week as needed to go to the
    grocery store or to look for work. The ALJ asked Pennington whether something
    happened on January 2, 2006, his alleged onset date, that caused him to become
    unable to work. Pennington explained he could not perform the duties he
    previously was able to perform, because of breathing problems and an injury to his
    back. The ALJ asked whether Pennington injured his back on the alleged onset
    date; Pennington responded he injured his back doing physical labor, and the injury
    had been ongoing. He stated he had been diagnosed with degenerative disc
    disease, but could not recall when he received that diagnosis and stated the date
    would be in his medical records.
    Pennington explained he previously had worked as an electrician and a
    carpenter, but no longer could perform the physical duties necessary for that type
    of work. Since filing his application for SSI, Pennington had worked at Home
    Depot for 89 days, and at a cable company but was unable to perform the duties
    required for each job. At Home Depot, he was hired to assist in stocking
    merchandise but was unable to perform the work because of his hands, back, and
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    hernia. At the cable company, he was unable to keep up with the demands of the
    job because of his back problems and arthritis in his hands. Because he physically
    could not perform the duties required, Pennington was terminated from both jobs.
    Pennington testified he did work around the property on which he lived, but
    had to pace himself in performing household chores and personal-care activities.
    The ALJ asked Pennington to describe his activities the previous day. Pennington
    stated he woke up and got ready, drove to his attorney’s office, stopped by the post
    office and a restaurant on the way home, fed his dogs, napped for about two hours,
    cooked dinner, and watched TV. Pennington stated that was a fairly typical day
    for him.
    Pennington stated he was taking methocarbamol for muscle pain and had
    been proscribed several other medications by Dr. Blackwood at the VA. He
    acknowledged Dr. Blackwood had never told him he was unable to work or that he
    needed to limit his activities in any way. Pennington further testified he had a
    hernia, which caused swelling, discomfort, and stomach irritation; he was waiting
    on the VA to schedule his hernia surgery. He stated he had pain in his lower back,
    which he rated as a seven or eight out of ten without medication. Pennington took
    pain medication on a daily basis, which reduced his pain to two to four out of ten.
    The medication, however, caused drowsiness and an upset stomach; Pennington
    stated he typically took naps daily for fatigue and stress. He also experienced
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    numbness and tingling in his legs, when he engaged in physical activity, and he
    had difficulty gripping and performing other fine-motor tasks with his hands,
    because of his arthritis. Pennington stated he was afraid he might have a stroke,
    because he had experienced chest pains, had vision problems from previous
    injuries to his eyes, and had limited hearing in his left ear. In addition, Pennington
    had been prescribed an inhaler because he experienced shortness of breath, when
    he engaged in physical activity. The breathing problems required him to take
    breaks every half hour when performing physical activities and interfered with his
    ability to sleep at night. Pennington explained he could sit only for an hour at a
    time, because of his back pain but stated he frequently could lift his smallest dog,
    that weighed 18 pounds.
    The ALJ asked the vocational expert (“VE”) whether work existed in the
    national economy for a person who was (1) a younger individual with a GED but
    no relevant past work, (2) restricted to light work with no more than occasional
    bilateral feeling, climbing of ramps, stairs, ladders, ropes, and scaffolds, balancing,
    stooping, kneeling, crouching, and crawling, and (3) could not have concentrated
    exposure to hazards, dangerous machinery, heights, or pulmonary irritants. The
    VE testified such a person could work as a ticket taker, office helper, or a cleaner
    in housekeeping. The ALJ asked whether those jobs would be available if the
    hypothetical person also required an option to sit or stand at will. The VE stated
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    the office helper and ticket-taker jobs would satisfy that requirement, and such a
    person also could work as an assembler of plastic-hospital parts. Pennington’s
    counsel asked whether the jobs the VE mentioned required the ability to carry out
    fine manipulation tasks; the VE stated the ticket taker and housekeeping jobs did
    not have that requirement.
    C.    ALJ Determination
    The ALJ determined Pennington did not have a disability within the
    meaning of the Social Security Act. Although Pennington had worked at Home
    Depot and the cable company since filing his SSI application, the ALJ concluded
    that work did not rise to the level of substantial gainful activity. Concerning
    Pennington’s claimed impairments, the ALJ noted Pennington had vision issues
    but stated Pennington continued to drive and admitted he was able to see with
    glasses. Similarly, the ALJ concluded Pennington’s possible coronary-artery
    disease did not rise to the level of a severe impairment, because his stress test was
    inconclusive; he had not submitted additional records; and there were no
    limitations from his coronary-artery disease, which that had persisted for a
    consecutive twelve-month period. The ALJ also noted Pennington had not
    followed up or scheduled any surgery to repair his hernia since he was seen in
    2010. In addition, regarding Pennington’s assertion he suffered from stress and
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    anxiety, the record contained no medical evidence showing a diagnosis of those
    conditions or any mental-health treatment.
    The ALJ concluded, however, Pennington had the following severe
    impairments: disorders of the spine, right-thumb osteoarthritis, and COPD.
    Despite these severe impairments, the ALJ concluded Pennington did not have an
    impairment or combination of impairments that met or medically equaled the
    severity of one of the listed impairments (“the Listings”) in 20 CFR Part 404,
    Subpart P, Appendix 1.
    The ALJ determined Pennington had the RFC to perform light work with the
    following limitations: (1) the ability to change position between sitting and
    standing at will, (2) no more than occasional bilateral feeling, climbing of ramps,
    stairs, ladders, ropes, or scaffolds, balancing, kneeling, stooping, crouching, and
    crawling, and (3) no concentrated exposure to hazards, dangerous machinery,
    heights, or pulmonary irritants including dusts, fumes, odors, and gases. In making
    this determination, the ALJ considered Pennington’s symptoms, the extent to
    which they were consistent with the objective-medical evidence, and the opinion
    evidence presented. After summarizing the medical evidence and hearing
    testimony, the ALJ concluded Pennington’s medically determinable impairments
    reasonably could be expected to cause his alleged symptoms. Nevertheless, the
    ALJ found Pennington’s statements concerning the intensity, persistence, and
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    limiting effect of his symptoms were not credible to the extent they were
    inconsistent with the ALJ’s RFC determination.
    First, the ALJ noted Pennington’s alleged onset date of January 2006 was
    not corroborated by medical evidence, and Pennington had provided vague and
    inconsistent testimony about why he had stopped working. Specifically,
    Pennington at one time reported he had stopped working at Home Depot and the
    cable company because of stress; at the hearing, however, he testified he was
    terminated from both jobs because he could not keep up with the physical demands
    of the work. The ALJ further found Pennington had a tendency to exaggerate,
    because he told Dr. Carpenter he suffered from poor grip strength and weakness in
    his hands, but was assessed by Dr. Carpenter as having 5/5 bilateral grip strength.
    In addition, Dr. Carpenter reported Pennington’s fine-manipulation skills were
    intact, and Pennington had no difficulty manipulating buttons or opening doors.
    The ALJ further stated Pennington’s poor work history, which did not
    include any real relevant past work, did not enhance his credibility and was
    suggestive of secondary-motivational issues. Furthermore, Pennington’s daily
    activities showed he was capable of performing light work, since he was able to
    care for his dogs, perform some yard work, and do some housekeeping. The ALJ
    also noted Pennington’s treatment had been conservative, consisting primarily of a
    medication regimen that essentially had remained unchanged with no significant
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    side effects. Finally, although Pennington saw Dr. Kollmer for a one-time
    evaluation, he did not follow up with Dr. Kollmer for additional treatment, and the
    record did not contain any recommendation for injections or surgery.
    Regarding the medical-opinion evidence, the ALJ noted there were no
    opinions from any treating provider regarding functional limitations or disability,
    and Dr. Blackwood “was unwilling to assess any limitations.” R. at 61. The ALJ
    gave significant weight to Dr. Brigety’s opinion and assessed additional limitations
    based on Pennington’s partially credible testimony concerning the need to limit his
    exposure to pulmonary irritants because of shortness of breath. The ALJ gave no
    weight to Dr. Kollmer’s opinion, because it was not well supported by
    Pennington’s treatment records. The ALJ noted Dr. Kollmer was a non-treating,
    one-time examining physician. The ALJ explained Dr. Kollmer’s assessment was
    inconsistent with Dr. Carpenter’s finding Pennington had normal range of motion
    of the cervical spine, and the treatment records showed no subsequent
    exacerbation. The ALJ also reiterated Pennington’s statement to Dr. Kollmer, that
    he had stopped working because of stress, was inconsistent with his hearing
    testimony. Accordingly, the ALJ concluded the RFC assessment was consistent
    with the overall credible record evidence.
    The ALJ found Pennington had no past relevant work but had at least a high-
    school education and was able to communicate in English. The ALJ noted
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    Pennington was 48 years old when he filed his application, which placed him in the
    “younger individual” age category of 18 to 49 years, but he had since moved into
    the “closely approaching advanced age” category. Considering Pennington’s age,
    education, work experience, and RFC, the ALJ concluded Pennington could adjust
    to other work that existed in significant numbers in the national economy.
    Specifically, based on the VE’s testimony, the ALJ found Pennington could
    perform the jobs of ticket taker, office helper, and assembler of plastic-hospital
    parts. Therefore, the ALJ concluded Pennington was not disabled and denied his
    application for SSI.
    D.    Subsequent Proceedings
    The Appeals Council denied Pennington’s request for review of the ALJ’s
    decision. Pennington then filed a complaint for review in federal district court and
    consented to proceed before a magistrate judge. The magistrate judge affirmed the
    Commissioner’s final decision.
    II. DISCUSSION
    A.    Credibility Finding and ALJ’s Duty to Develop the Record
    On appeal, Pennington first argues the medical evidence supported his
    claims concerning the limiting effects of his pain, and the ALJ’s reasons for
    disregarding his subjective complaints were not based on substantial evidence.
    Pennington further asserts the ALJ failed to fully and fairly develop the record
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    concerning gaps in his medical and work history and the reasons for his
    conservative course of treatment.
    We review an ALJ’s decision for substantial evidence and the ALJ’s
    application of legal principles de novo. Moore v. Barnhart, 
    405 F.3d 1208
    , 1211
    (11th Cir. 2005). “Substantial evidence is more than a scintilla and is such relevant
    evidence as a reasonable person would accept as adequate to support a
    conclusion.” Winschel v. Comm’r of Soc. Sec., 
    631 F.3d 1176
    , 1178 (11th Cir.
    2011) (citation and internal quotation marks omitted). We may not decide the facts
    anew, make credibility determinations, or re-weigh the evidence. Moore, 
    405 F.3d at 1211
    . Credibility determinations “are the province of the ALJ,” and we will not
    disturb a clearly articulated credibility finding supported by substantial evidence.
    Mitchell v. Comm’r of Soc. Sec., 
    771 F.3d 780
    , 782 (11th Cir. 2014). If the ALJ
    discredits the claimant’s subjective testimony, the ALJ must state explicit and
    adequate reasons for doing so. Wilson v. Barnhart, 
    284 F.3d 1219
    , 1225 (11th Cir.
    2002).
    Eligibility for SSI requires the claimant to be under a disability. 
    42 U.S.C. § 1382
    (a)(1)-(2). In relevant part, a claimant is under a disability if he is unable to
    engage in substantial gainful activity by reason of a medically determinable
    impairment that can be expected to result in death or which has lasted or can be
    expected to last for a continuous period of at least twelve months. 42 U.S.C.
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    § 1382c(a)(3)(A). In evaluating SSI claims, the ALJ uses a five-step, sequential
    evaluation process to determine whether a claimant is disabled. 
    20 C.F.R. § 416.920
    (a). As part of this process, the ALJ analyzes whether the claimant (1) is
    currently engaged in substantial gainful activity, (2) has a severe, medically
    determinable impairment or combination of impairments, (3) has an impairment, or
    combination thereof, that meets or equals the severity of a Listing, (4) can perform
    any of his past relevant work, in view of his RFC, and (5) can make an adjustment
    to other work relative to his RFC, age, education, and work experience. See 
    id.
    Whether or not a claimant is represented by counsel, the ALJ has a duty to
    develop a full and fair record. Ellison v. Barnhart, 
    355 F.3d 1272
    , 1276 (11th Cir.
    2003). This duty is heightened when the claimant is not represented by counsel in
    the administrative proceeding. See Brown v. Shalala, 
    44 F.3d 931
    , 934-35 (11th
    Cir. 1995); Kelley v. Heckler, 
    761 F.2d 1538
    , 1540 & n.2 (11th Cir. 1985).
    Nevertheless, the claimant ultimately bears the burden of proving he is disabled
    and consequently is responsible for producing evidence in support of his claim.
    Ellison, 
    355 F.3d at 1276
    . In determining whether a remand is necessary to
    develop the record, we consider whether there are evidentiary gaps in the record
    that result in unfairness or clear prejudice to the claimant. Brown, 
    44 F.3d at 935
    .
    Therefore, a claimant must demonstrate prejudice before we will conclude his due
    process rights have been violated to such an extent that the case must be remanded.
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    Id.
     To demonstrate prejudice, the claimant must show “the ALJ did not have all of
    the relevant evidence before him in the record . . ., or that the ALJ did not consider
    all of the evidence in the record in reaching his decision.” Kelley, 
    761 F.2d at 1540
    .
    Substantial evidence supports the ALJ’s finding Pennington’s testimony
    concerning his alleged onset date was not credible. See Mitchell, 771 F.3d at 782.
    In his application, Pennington identified January 2, 2006, as his alleged onset date.
    At the hearing before the ALJ, however, Pennington was unable to state
    specifically why or how he became unable to work on that day. Similarly, during
    his consultative exam with Dr. Carpenter, Pennington could not identify any
    discrete injury as the cause of his symptoms and merely stated he had a long
    history of chronic pain. In addition, Pennington told Dr. Blackwood he had been
    experiencing chronic pain since 1983, which was well before the alleged onset
    date.
    Pennington contends the ALJ should have inquired about the gap in his
    medical records between 2003 and 2010 before discrediting his testimony, based
    on the lack of evidence to support his alleged onset date of January 2006.
    Pennington, however, does not assert any medical records actually exist for the
    period from 2003 to 2010 or explain how such records would be relevant to
    support his alleged onset date. Consequently, he has not demonstrated any
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    prejudice from the ALJ’s alleged failure to develop the record regarding the gap in
    his medical history. See Kelley, 
    761 F.2d at 1540
     (holding, to show prejudice, the
    claimant must show “the ALJ did not have all of the relevant evidence before him
    in the record”) (emphasis added)). In addition, the VA records from February 8,
    2010, showed Pennington was a new patient and had not been seeing any other
    doctor, suggesting the gap in his medical records simply reflects a period during
    which he did not seek medical treatment. This suggestion is further supported by
    the absence of any indication from Pennington or his counsel that such records
    exist. Furthermore, Pennington ultimately bore the burden of producing evidence
    to support his claim of disability; because he was represented by counsel in the
    administrative proceeding, the ALJ was not subject to the heightened duty to
    develop the record that applies in proceedings involving unrepresented claimants.
    See Ellison, 
    355 F.3d at 1276
    ; Brown, 
    44 F.3d at 934-35
    ; Kelley, 
    761 F.2d at
    1540
    & n.2.
    Substantial evidence also supports the ALJ’s conclusion Pennington
    exaggerated his limitations concerning his ability to use his hands. Despite
    Pennington’s own reports of weakness and poor grip strength in his hands, Dr.
    Carpenter found Pennington had 5/5 grip strength bilaterally, intact fine-
    manipulation skills, and was able to manipulate buttons and open doors without
    difficulty. Dr. Carpenter did opine Pennington might have difficulty performing
    21
    Case: 15-14254    Date Filed: 06/17/2016   Page: 22 of 26
    fine-manipulation tasks. In a RFC assessment completed a few weeks after
    Pennington had seen Dr. Carpenter, Lichtward, the medical disability adjudicator,
    noted such a conclusion somewhat contradicted Dr. Carpenter’s medical findings.
    Additionally, both Lichtward and Dr. Brigety, who completed an RFC assessment
    on November 2, 2010, determined Pennington was unlimited in his ability to
    perform gross and fine-manipulation tasks; in that regard, Dr. Brigety noted
    limitations only in Pennington’s ability to feel. Consequently, there was more than
    a scintilla of evidence to support the ALJ’s conclusion Pennington’s symptoms
    were not consistent with the medical evidence. Winschel, 
    631 F.3d at 1178
    .
    The evidence also supports the ALJ’s conclusion Pennington had a poor
    work history reflective of possible secondary-motivational issues. Pennington’s
    earning records revealed gaps in his work history in 1987, 1991 to 1992, and 1999
    to 2000, and showed no work history after 2002. Additionally, Pennington’s
    earnings in the years he did work were below what a person working full time at
    the then-prevailing minimum wage would have earned, which suggested he did not
    work full time consistently. Pennington contends the ALJ should have questioned
    him about the gaps in his work history before concluding those gaps reflected
    secondary-motivational issues; he suggests there might have been credible
    explanations for those gaps. But Pennington does not actually offer such
    explanation or supporting evidence; therefore, he cannot show any relevant
    22
    Case: 15-14254     Date Filed: 06/17/2016   Page: 23 of 26
    evidence concerning his work history was missing from the record. See Kelley,
    
    761 F.2d at 1540
    . Consequently, he has not shown prejudice from the ALJ’s
    alleged failure to develop the record concerning his work history. See Brown, 
    44 F.3d at 935
    ; Kelley, 
    761 F.2d at 1540
    .
    Additionally, the evidence supports the ALJ’s conclusion that Pennington’s
    activities of daily life showed a capacity for light work. Although Pennington
    testified he had to pace himself when doing work around the house, he also
    testified he was able to cook, care for his dogs, do some household chores, and
    work around the property on which he lives. While Pennington stated in his March
    29, 2010, pain questionnaire he needed help from his girlfriend to perform some
    daily activities, he told Dr. Carpenter on May 4, 2010, he was able to perform daily
    activities without assistance. These contradictory statements provide an additional
    basis of support for the ALJ’s conclusion Pennington was exaggerating his
    functional limitations. Moreover, an ALJ properly may rely on a claimant’s daily
    activities in making credibility determinations. See, e.g., Moore, 
    405 F.3d at
    1212-
    13.
    Finally, Pennington contests the ALJ’s reliance on his conservative
    treatment as a basis for discrediting his testimony concerning the severity of his
    symptoms and contends the ALJ impermissibly made an independent medical
    determination. He asserts the ALJ failed to develop the record by not questioning
    23
    Case: 15-14254      Date Filed: 06/17/2016   Page: 24 of 26
    him about his course of treatment and posits his doctors may have been waiting for
    the results of his cardiac catheterization and pulmonary-function tests before
    suggesting more aggressive treatment. Like his previous failure-to-develop
    arguments, Pennington does not demonstrate prejudice, because he does not
    actually assert or provide evidence there was a reason for his conservative
    treatment unrelated to the severity of his symptoms or that further development of
    the record by the ALJ would have revealed that evidence. See Brown, 
    44 F.3d at 935
    ; Kelley, 
    761 F.2d at 1540
    .
    The ALJ was correct in noting none of the medical records included
    recommendations for more aggressive treatment for Pennington’s back and hand
    pain. In relying on this fact, the ALJ did not impermissibly make an independent
    medical determination, because ALJs are permitted to consider the type of
    treatment a claimant received in assessing the credibility of his subjective
    complaints. See 
    20 C.F.R. § 416.929
    (c)(3)(iv), (v). Moreover, Pennington’s
    testimony at the hearing concerning the side effects of his medications was
    undermined by his statement on his pain questionnaire he was not suffering any
    side effects from his medication. In addition, Pennington testified the medication
    reduced his pain from seven or eight out of ten to two to four out of ten; he also
    told Dr. Blackwood his pain was partially relieved by medication, which suggested
    his treatment was conservative, because his symptoms were being managed
    24
    Case: 15-14254     Date Filed: 06/17/2016   Page: 25 of 26
    adequately. Consequently, there was more than a scintilla of evidence to support
    the ALJ’s conclusion Pennington’s conservative treatment undermined his
    testimony about the severity of his symptoms. Winschel, 
    631 F.3d at
    1178
    In summary, the ALJ clearly stated explicit and adequate reasons for her
    credibility determination, and those reasons were supported by substantial
    evidence. Mitchell, 771 F.3d at 782; Wilson, 
    284 F.3d at 1225
    . Furthermore, the
    ALJ did not fail to fully and fairly develop the record; Pennington failed to
    demonstrate prejudice from this alleged failure. Brown, 
    44 F.3d at 935
    ; Kelley,
    
    761 F.2d at 1540
    .
    B.    ALJ’s Hypothetical to the VE
    Pennington also argues the VE’s testimony does not constitute substantial
    evidence in support of the ALJ’s finding he could perform other work, because the
    ALJ did not include all of his limitations in the hypotheticals posed to the VE.
    Specifically, Pennington contends the ALJ erred in failing to include limitations in
    fine manipulation skills, because the medical evidence supported his complaints
    about his hands.
    We review the ALJ’s decision for substantial evidence. Moore, 
    405 F.3d at 1211
    . In a disability determination, once a claimant demonstrates he no longer can
    perform his past relevant work, the burden shifts to the ALJ to show the claimant
    can perform other jobs in the national economy, despite his impairments. Jones v.
    25
    Case: 15-14254     Date Filed: 06/17/2016    Page: 26 of 26
    Apfel, 
    190 F.3d 1224
    , 1228 (11th Cir. 1999). The ALJ may satisfy this burden
    through the testimony of a VE. See 
    id. at 1229
    . For a VE’s testimony to constitute
    substantial evidence, however, the ALJ must pose a hypothetical containing all of
    the claimant’s impairments. 
    Id.
     An ALJ is not required to include findings in the
    hypothetical that properly were rejected as unsupported. Crawford v. Comm’r of
    Soc. Sec., 
    363 F.3d 1155
    , 1161 (11th Cir. 2004).
    The ALJ was not required to include a fine-manipulation limitation in the
    hypothetical to the VE, because substantial evidence supports the ALJ’s conclusion
    Pennington’s purported symptoms and limitations concerning his hands were not
    supported by the medical evidence. See 
    id.
     Consequently, the ALJ’s hypothetical
    was proper, and the VE’s testimony constitutes substantial evidence Pennington is
    capable of performing jobs in the national economy despite his impairments.
    Crawford, 
    363 F.3d at 1161
    ; Jones, 190 F.3d at 1229. Even if the ALJ had erred in
    failing to include a fine-manipulation limitation in her hypothetical, the error
    would have been harmless. In response to questioning by Pennington’s counsel,
    the VE testified Pennington would still be able to perform the ticket-taker job even
    with a fine-manipulation limitation.
    AFFIRMED.
    26