[spondylosaurus]

What of the fact that my father and I both get painless clicking when we open our jaws too wide? Unless I'm having an arthritis flare, it doesn't hurt at all, but every dentist I've ever seen has pointed it out with curiosity. That certainly seems like a mechanical issue.

My immediate reaction here is that casting (my) TMJ pain as a matter of emotional avoidance feels a tad dismissive, tbh. Particularly when the pain comes in tandem with flare-ups of other systemic inflammatory issues... unless ankylosing spondylitis is an emotional problem as well :)

[brightrhino]

Could it be that some TMJ pain has one cause and some TMJ pain has a different cause?

[spondylosaurus]

Probably, sure. Which if anything is all the more reason I think it's unhelpful to jump right to "my guess it's an emotional regulation problem" before you've ruled out physical causes like chronic enthesitis.