OK, I've been a musician for 40 years and my basic Tinnitus is probably my own fault. But lately, for a year or so, I've noticed that whenever I work with my head down (ex: on my lawn, cleaning the tub, on my lawnmower, driveway, deck, etc) for more than 15 minutes, I will, about 1/2 hour later get a MAJOR increase in the ringing in my left ear as well as a loss of high pitch in that ear. Up to recently, that would last about 2 days and then go back to normal levels. A week ago, I worked on my lawn for a while one day, and when it got LOUD, it didn't go away. I've been to my ENT doctor just before this last onset, and they did notice a difference in my hearing even when I didn't. Now, as I said, it's much worse and doesn't want to go away. He said he never heard of such a thing, but is sending me for an ABR test to check for a tumor. Oh and when this is happening, loud noises are very distorted and crackly in the left ear. Is this all that rare or unheard of??? Is there a way to reverse it?? (Look UP for an hour??) Help!!!!! Thanx!! JOHN P.