I'm guessing this is an FM symptom but it's new to me and I couldn't find anything about it.......A few days ago my jaws started to ache; but it doesn't happen all the time only when I'm eating. It's not a deep ache or pain, it's almost like my jaws are tired after a few chews and the muscles just don't want to move anymore - they fell tired and achy. I noticed this this most on chew foods like a bagle. Does this sound familiar to anyone? Is there information about this type of thing anywhere? Thanks.....this is my first actual post but I've been lurking and the information on the boards has really been helpful.