I actually had this just about a week ago, and it lasted around 4 days. Although i'm not sure exactly what caused it. I do have tmj, so it could be that. I have also been told by Dr.S it could be sinus problem or allergies, or some type of infection or referred pain from a type of headache. I also suffer extreme anxiety and i'm pretty sure a somatoform disorder, also, where anything my brain thinks is wrong, will turn into physical pain for me. If there are no other symptoms, i'd say try not to move it around too much and see if it goes away in a few days. Hope it works out for you!

thanks for the reply