Hi, I'm interested to know whether anyone else has had much success with Vitamin B12. I've been taking 2000 micrograms a day for the last few years and can honestly say it reduces my problem 50% or more. (If I forget to take it, the T comes back with a vengeance - stereo jet screams, the works.) The methylcobalamin B12 variant is the one that works for me, I've also tried Vitamin B12 in cyanocobalamin form but with no effect. For the first few weeks I took a higher dose (4,000ug a day), when it started to work I dropped the dose to half that. I'll also mention that another effect of the B12 appears to be improved brain focus (not a big difference, but noticeable).
(I've read the evidence that says it's not supposed to work, but then, tinnitus doesn't make any logical sense either.)