The reason I ask this is that last night I was woken up because my top teeth clicked down on my bottom ones. I was half asleep and I don't know whether it just happened - just because, or whether I was dreaming, but I wanted to ask. I know I have fluid in my ears because the doctors have seen it and I myself can hear it when I turn over. I don't think it is TMJ because if I were just to move my jaw without breathing I don't feel anything happening in my ears - no popping/clicking, only when I breathe and do it i.e. yawning. I can open my mouth fine, eating is not a problem, though I do have pain sometimes round my sinuses which I read could be a symptom. A few weeks ago when I was eating I did get pain in my ear as I was chewing - like cringe-worthy pain. However, it reminded my of when I'm on a plane and we are descending, and I'm sucking a sweet and every time that I suck it would cause pain in my ear. That would be consistent with ETD I think, but I wanted to know whether people think that is a sign of TMJ. So really my question is could TMJ cause these symptoms, particularly the fluid behind the ears?