I've had tinnitus for the past 6months now and I was wondering if anyone can help me figure out what's causing it. It started in early July in my right ear as a high-pitched ringing noise, and it seems to be changing all the time. Sometimes it sounds like the whine of a VCR, or the chirping of crickets, the ringing of a bell, the sound of wind chimes, etc. Basically, it changes all the time and some sounds are more bearable than others. I've been to several doctors since then, the fist two said I had fluid in my middle ear and gave me medicine for it. After going in for a check up, I was told the fluid was gone, but the ringing still persists. This was probably around 3 or 4 months ago. I've also been using a night guard for my teeth to see if my jaw might be causing the problem (I have an overbite). I've still not really had many improvements. My hyperacusis has greatly improved, but that's really it. When I pop my ears (Or yawn, hiccup or inwardly burp) the right one makes a strange sound and gets really itchy. Also, when I'm in the car, I feel sharp blips of pain in my right ear and it will pop, it also occasionally feels very painful when I'm in the shower. (It also just pops randomly at times) The sound also has a tendency to get louder when I yawn. Also, If I get up too quickly, I'll feel dizzy and the sound will change to that of a buzzing mixed with a high-pitched ring. Despite this, the doctors tell me that they're no signs of redness, inflammation or fluid in my ear. Can anyone please tell me what the cause of this is? Thank you!