I've had tinnitus since the late 70's. I suspect it was chainsaws and diesel equipment noise, which damaged my inner ears. But the beast had not reared its ugly head until I had a viral inection about a year ago. Now I'm 6000Hz at 45-100 decibels 24x7. Sleep is impossible without medication, 2mg Lorazepam/Ativan. I now have a hearing aid, which improves my hearing and distracts from the Tinnitus slightly. The only hope for a normal life is a neurological breakthrough by someone focusing on brain stimulation for volume control.