Myofascial pain is a unique type of pain caused by a muscle spasm or trigger point and can occur throughout the body. A unique fact about trigger points is that they refer pain to areas away from the actual muscle spasm or trigger point.Trigger points in the neck and shoulders can also refer pain to the jaw, head and face.
What is a trigger point?
Tigger points and TMJ
The following site has more complete information on trigger point location and referred symptoms for the entire body: http://www.triggerpoints.net (click)
* I like this site because you can open the symptoms tab click on the area of the body you are having symptoms and then click again to get a more specific part of the body. If you have or think you have myofascial pain, you need to contact a therapist who is thoroughly trained in diagnosis and treatment of trigger points.