@Carlyi Not sure at all to be frank. At a complete loss, same with my doctor. The quick facts:
1. Tinnitus suddenly appeared out of the blue. No acoustic trauma. I bumped my forehead two weeks prior to tinnitus onset. Very light bump, so a potential cause. Tinnitus primarily in right ear. Always been a fit and in shape guy, for the past ten years (exercise 4 x a week, weights + cardio). No stress event minus my current tinnitus. Never taken pills, never any headaches, I've never had aspirin or tylenol in my life.
2. Went to see GP, ENT, and two audiologists. All advised ear was fine, no infection, and all advised I have excellent hearing. All hearing, pressure, membrane, etc.., all tests passed with flying colours. They all advised they had no idea what was doing this and sent me on my way. ENT didn't think an MRI or CAT scan was necessary, which did upset me. Basically, all told me, ears look fine and that my hearing is really good, and washed their hands of the matter.
3. For the past two years, I've been told by my dentist to get an orthotic/nightguard as I have bruxism; also recommended braces or Invisalign as I have crooked teeth. Orthotic to prevent both the grinding, and to straighten my jaw which is very very slightly out of place per my neuromuscular dentist. Kept putting all that off, simply couldn't afford it and my mouth didn't hurt (it did on occasion) so I figured eh, whatever. I also do have a bad posture.
4. Food, caffeine, exercise, mood, lack of sleep- absolutely nothing affects my tinnitus, which is a constant high pitch tone primarily in my right ear, except for pressing my temporalis muscle on the right side of my head, turning my head to my left (not the right, doesn't do anything), moving my jaw from side to side (especially to my right) and opening my my mouth wide. The pitch gets higher when I do these things. I occasionally get that fleeting tinnitus that lasts for 5 or so seconds. I quit smoking pot for 6 months and zero change to tinnitus; back to smoking pot to help sleep.
5. There's something in my either right jaw joint, or my right ear, that's making crackling/popping noises in my right ear. I thought it was when I was flexing my ear, or straining/clenching my jaw. It's hard to describe the movement I mak-, I know I'm moving some muscle there in my mouth/head area that causes this noise. Doctor thought it was ETD but no such luck.
Basically I can't find any causes. I'm hopeful that it is TMJ related, since I have quite a number of dental, and on top of that, posture problems. Maybe it is hearing related (I've heard of hidden hearing loss through this forum), but yeah, basically, I'm absolutely unsure, and the fact that it affects really one ear (my right one) is what drives me crazy. I made this thread because I was hoping to gather as much information on all different causes of tinnitus to be able to rule some things out or explore different avenues.
Thank you for the reply.