Hi guys, My tinnitus has been acting so erratic the past few days! I hear a super high pitched mosquito noise rise above everything for a few seconds, then it disappears.....30 seconds later a high pitched mosquito noise for a few seconds heard over everything.....then it disappears....repeat every 30 seconds! Its doing my head in! It goes like this;....eeeeEEEeee.........30 seconds later......eeeEEEEeee.....eeeEEEeee....this is on top of my normal roaring type tinnitus that isn't too loud. I thought I might of had sinuses but I don't think I have because I've felt OK for the past day or so. I'm stumped to what is causing this? This fluctuating high pitched noise is so annoying! Lol.