Tinnitus is the perception of sound [wikipedia] in the ear in the absence of corresponding external sound. Chemotherapy is mentioned as a possible cause.
My tinnitus, and it is mine all mine - you can't hear what I can, is an incredible phenomenon.
I have a range of sounds, different sounds at different times, sometimes one at a time, mostly several at a time.
I've had Parisienne ambulances - you have heard those brilliant trumpets while eating a baguette in the Luxembourg Gardens. Yes you have.
- James Bond theme music
- movie soundtracks, multi-track with percussion, horns and strings, over and over. Wish I knew which movie
- wah-wah guitars
- little brass bells
- taps dripping in the next room into a half-full bathtub
- something in time with my pulse, whooshing
- other percussion
Of course it may be the absence of hearing real sound which has allowed the tinnitus to come to the foreground.
Is it annoying? You bet - sometimes it wakes me up. I wish it would just shut the f*#% up!!