The appellant's sickle cell anemia and thalassemia were not manifested during service, and the Board finds that they are not related to his military service.

The Veteran's appeal regarding service connection for hepatitis C, sickle cell anemia, peripheral neuropathy of the left upper extremity, and non-Hodgkin's lymphoma was granted. The effective date remains to be determined as it pertains to a prior final decision.

The Veteran's claims for PTSD, headaches secondary to major depressive disorder, and increased ratings for various service-connected disabilities have been granted. The case is REMANDED for additional development including examinations and readjudication.

The Veteran's claims for service connection for various disabilities are being remanded due to the need for additional development and examination.,The Veteran's claims for service connection for a left shoulder/arm disability, right shoulder/arm disability, left foot/ankle disability, and right foot/ankle disability are being remanded. The examiner must consider exposure to toxins in the Southwest Asia Theater of Operations as well as whether any of his claimed disabilities are unexplained illnesses or MUCMIs.,The Veteran's claims for service connection for bilateral ear pain, sinusitis, lung mass, and pneumonia are being remanded. The examiner must consider whether these symptoms are related to his service in the Southwest Asia Theater of Operations, including consideration of whether they are undiagnosed illnesses or MUCMIs (including fibromyalgia).,The Veteran's claims for service connection for an enlarged heart, hematochezia, and colon polyps are being remanded. The examiner must consider whether these conditions began during or are related to his active duty service.,The Veteran's claim for service connection for thalassemia is being remanded. The examiner must determine if the condition is a congenital defect or disease and whether it was incurred or aggravated by service.

The Veteran's vertigo and sickle cell anemia did not meet the criteria for extraschedular disability ratings prior to January 2, 2013.,The Veteran was not assigned a disability rating that is independently 60 percent disabling in addition to a total disability rating prior to October 18, 2017. The Board also found that he did not meet the criteria for TDIU prior to January 2, 2013.,The Veteran's need for aid and attendance was remanded due to a duty to assist error.