Hi, Tracy, and welcome! You could be grinding your teeth in your sleep and then it affects the muscles. This is one of the causes of TMJ, if that is what is going on. Check with your dentist. If this is TMJ, many times there is a mouth appliance that they make that you can wear at night to prevent you from grinding your teeth. That, in turn, can help with the muscle pain.
Be sure to check out Fibro 101...the second thread on the forum. There are links to good info about fibro and you will learn a lot.
I'm glad you found us and joined in. Let us know what you find out. Hope to hear more from you soon.
Sherrine