Entitlement to service connection for benign paroxysmal positional vertigo is granted.

Board reasoning

The Board concluded that the evidence is at least in equipoise regarding whether the veteran's benign paroxysmal positional vertigo is related to the service-connected tinnitus, and resolved reasonable doubt in the veteran's favor, finding secondary service connection warranted under 38 C.F.R. § 3.310(a). The discussion cites both VA and private medical opinions linking vertigo to tinnitus, and the Board relies on the interconnected anatomy and shared neural pathways to support a secondary relationship.