Since completing my radiation and chemo for SQC cancer at the base of my tongue 3 weeks ago, I have recently noticed that I have a continuous humming sound in my ears. The Doctor called it Tinnitus and said it is a possible side effect of the chemo. I had a hearing test done and seem to have also lost my high pitch hearing as well. Unfortunately he said there is nothing that can be done for the humming sound, but they say the high pitch hearing problem may be corrected by a hearing aid. Have any of you experienced this problem and if so did it go away or what did you do about it? Thanks for your comments.