The Veteran's service-connected disabilities have rendered him unable to secure or follow a substantially gainful occupation throughout the appeal period, and the Board finds that he is entitled to TDIU.

The Board remands the claim for service connection for an acquired psychiatric disorder to ensure a proper examination and etiology opinion are provided.

The appeal for a compensable rating for left ear hearing loss, service connection for right ear hearing loss, and bilateral vision condition was dismissed. Service connection for hypertension, congestive heart failure, and coronary artery disease was denied.

The Board granted service connection for PTSD, generalized anxiety disorder, and somatic symptom disorder, as well as presumptive service connection for basal cell carcinoma under the PACT Act. Service connection was denied for chronic fatigue syndrome, irritable bowel syndrome, right restless leg syndrome, left restless leg syndrome, an increased rating for psychiatric disorder, bilateral hearing loss, a left forehead surgical scar, and allergic rhinitis.

The Board remands the claim for service connection for tinnitus to correct a duty to assist error, as the Veteran's lay statements regarding onset and continuity of symptoms were not adequately considered in the previous decision.