Yes it's TMJ and part of fibro. Boo!!!
What I have changed about my life to stop the jaw pain is to pick and choose what I eat. Gum, out. Steak, out. Anything that is hard to chew or causes me to chew a lot, out.
It made a huge difference. Because your jaw is a joint, when it gets aggravated it can start a flare.
When I figured that out my flares due to TMJ stopped. I swear it's never ending extermination with fibro.
xxxx

I meant to say it's never ending experimentation with fibro!
xxxx

TMJ just was diagnosed yesterday not nice at all sending gentle hugs x

Jaxs u may be clenching and grinding your teeth at night making your TMJ worse. There is a question here about it u may find useful. 8 also grind and took so much enamel off my teeth, and on top of all the medication I take my teeth are collapsing

Yes the old TMJ. It's more painful trying to keep my mouth open at the dentist's than any root canal or procedure they could do. I always ask for those cork things to keep my mouth open without me mechanically having to do it..I still have to support my jaw at times when the ache gets too severe