Chintzy, if you don't mind me asking, does your face ever get a tingling sensation? My jaw will tighten and I'll feel pressure, and then the tingling will last for a few seconds. I too have had a MRI to see if there was anything causing this from the trigeminal nerve. Nothing showed up. Let me know. I have heard on this board of people here having facial tingling with there TMJ.
Hopefully we'll talk again!!!!! Take care, I know its frustrating, I've had the ear pain, and pressure, along with the facial sensations for 6 years now. Sometimes I think I'm going batty!!!!