The Board has granted service connection for von Hippel-Lindau syndrome, finding that the condition first manifested during active duty and is a congenital disease. Service connection was denied for a fatigue disability due to lack of evidence of a distinct current disability.

The Board has determined that the AOJ did not obtain all necessary opinions regarding whether the Veteran's symptoms are related to an undiagnosed illness or medically unexplained chronic multisymptom illness (MUCMI). The claims for service connection for fatigue, fibromyalgia, left elbow disorder, right elbow disorder, and sleep disorder are remanded for further development.

The Veteran's claim for service connection for migraine headaches, as secondary to tinnitus, is granted. The claims for service connection for hearing loss disability and a disability manifested by shortness of breath other than chronic sinusitis and allergic rhinitis are denied. The claims for service connection for an intestinal disability (diverticulitis), fatigue, hypertension, neck disability, right upper extremity radiculopathy, left upper extremity radiculopathy, right shoulder disability, left shoulder disability, upper and lower back disability, right lower extremity radiculopathy, left lower extremity radiculopathy, right hip disability, left hip disability, right foot pain, left foot pain, gastroesophageal reflux disease (GERD), and an acquired psychiatric disorder are all denied.

The Board has denied the Veteran's claims for service connection for various conditions, including left leg shin splints, right leg shin splints, joint pain (claimed as arthritis), sleep apnea, fatigue, neck condition, acne, and lung condition. The evidence did not show a current disability or link to military service.

The Board has granted service connection for cardiac autonomic neuropathy (CAN) and remanded the secondary service connection claims for GERD, hypertension, sleep apnea, gastritis, headaches, and fatigue as secondary to CAN.