Sorry to hear about this and I hope it is related to medication for you. Many causes of Tinnitus and mine are not correctable. You definitely can learn to live with it by distraction and ignoring it. Some audiologists specialize in dealing with Tinnitis so you can work with one if needed. Loud noise situations make mine worse, but it is not uncommon for me to awaken in the morning with a loud buzzing after a quiet night. It either quiets down on its own or I just automatically turn my brain off to it. I have had this for over 12 years now, so my brain knows how to ignore it very well by now. Try the white noise ideas when all is quiet to cover it up. Research your area for audiologists who deal with Tinnitis. It takes a while to retrain your brain to ignore it, but obviously for you it can be another source of stress and anxiety. I read a book once that suggested loving your cancer away.......? Perhaps instead of the frustration, can you find a positive with this noise? Can you make it pleasant or rhythmic or lyrical so that you can not react so negatively to it? Sounds silly but maybe worth a try. Can you talk with your doctor about your meds and perhaps try something different?