I am starting to think that mine is really just TMJD. I have a misaligned jaw and this feeling of fullness has not gone away yet (which worries me a lot). I want to see a specialist asap. I noticed that before all of this BS started, I woke up a couple of nights before because my jaw had been hurting. I was on oral steroids for like 3 weeks recently. Overall the tinnitus has calmed down a ton.
I remember years ago,I had some type of injection done in the jaw area after I had a night gaurd made for me. Whatever the injection was,it didnt seem to help though