I don't have it now, but when I was younger it happened to me all the time when I yawned. I wonder if that nerve pain you mentioned has anything to do with it. I had had impacted wisdom teeth. When they finally came out I don't believe I had time problem anymore.

I have had pain in the side of my neck travelling to my ear but thankfully not ending up with lockjaw , bless you

Yes. I had it about eight years ago but did not know at the time what it was. Doctors told me it was TMJ and I needed surgery.. After about a year it went away and has not returned. I have had fibro about twenty years and have had certain spots come and go but for the most part I hurt all over. I am almost 74 years old.

Yes, my jaw has been locked for 2 years. It's not fun. TMJ issues are common with fibro.

Yes . I also have times where I cant figure out how to swallow .