Hi there, only recently I began developing symptoms of TMJ on the right side of my face. Nothing like what you're going through, so you have my condolences I couldn't imagine putting up with it for that long. Anyway just thought I'd mention that I'd been researching a device for some other joint pain and injuries I have and it mentioned that it treated TMJ as well. I don't know if you've had Microcurrent used on yourself yet. It looks sort of like a TENS unit but instead of pain killing it just speeds up natural healing ability. Apparently it can do miraculous things.
I'm awaiting mine in the mail I think it's coming this week. I ordered from here http://www.Cellstim.com
Although if you just google Microcurrent you should find a lot of info. I've had a bad knee injury and herniated disc for a while now and it seems like this may be the only thing that will help. I'll keep you posted though and let you know how it goes for my TMJ issue too!