I do have jaw pain...With fibromyalgia that is common. My Rheumy told me thatTMJ or (Temporomandibular joint) can be one of the side affects of Fibro. Has your jaw ever locked? I mean like you are not quite able to close it the same. I really notice mine when I have had my teeth cleaned. It takes a few hours-days before my teeth match the same.
I have been diagnosed with Tmj and then Fibromyalgia, so I think that one can have it without fibromyalgia.
For me my tmj is because of the muscles in the back of my neck. The tighter my neck is the worse my jaw is.
Headaches and pain in the ears are very common because of this problem.
I hope that was somewhat helpful,
I have promises to keep and miles to go before I sleep, and miles to go before I sleep.......Robert Frost