Is it possible that tinnitus is actually just a person's inability to ignore natural noise in the hearing systems? More of a physchological issue like chewing fingernails or having OCD, but which can be amplified by legitimate physical hearing damage? I ask this because for all the life I can remember, I've always been able to perceive a high-pitched tone, even in completely quiet environments. If I actually focus on…
That said, I have read (anecdotally) that many people claim to hear a slight high-pitched tone in a quiet environment, so it could be quite a bit more common than one would imagine.