It's strange that so few doctors are interested in the causes of T when there are so many of them, one would think that the prognosis depends on the causes, that's how it works with a lot of other conditions. I'll give you an example: when I got a tear of my labrum in my shoulder (SLAP-2) the surgeons said that because I've had a gradually tear over time cause of sport activity it could take longer time to heal, but those who get the exact same injury in a split second (car crash for instance) will heal and get well quicker cause the tear in the tissue is cleaner and/or produced by a sudden simple act of trauma. I guess this is simplified when I write it but it proves my point. So, one would guess that the same prognosis versus causes would apply to T as well. Reading peoples personal stories it seems so.
Also I think its a bit easy to be fooled by the way these lists are made, is it from first to last`? Are they listed as the most and least common from top to bottom? I really can't understand why the ENT surgeon that diagnosed me said "tinnitus is tinnitus, the cause is not relevant." Well, I beg to differ.