I'm very much the same. This kind of feels like a tree falling in the woods thing. I cannot really tell you my tinnitus actually goes away. Just that 99% of the time I'm not experiencing any evidence of it existing. Whether it's gone or I've just entirely tuned it out... who cares?

Right now I hear it because we're talking about it. In five minutes when I'm back to thinking about work, it will disappear again until the next time I randomly think about it.