Fibromyalgia Support Group
You're not alone in your pain. Fibromyalgia is a condition that can be difficult to diagnose and manage. If you're trying to cope with pain throughout your body, sleep problems, general fatigue, or other common fibromyalgia symptoms, you're in the right place. The community is here for you to talk about therapies and share your challenges.

I'm not sure what the treatment is as thankfully I don't have this particular issue, but I know a number of people who do so I'm familiar with the pain, but we've never discussed treatment.
The other option I'm aware of would be TMJ, but the pain you're describing doesn't sound as much like that.
Hopefully somebody else will be more helpful.
Oral surgeons, cat scans etc etc.
I couldn't drink or eat anything hot or cold.
I really stuck to avoiding these until it settled down.
No one could find anything wrong, it finally let up for awhile but returning.
I try to stretch my neck muscles, massage the muscle that goes from my neck up behind my ear. Making sure I am not sleeping wrong on a pillow plus watching posture and making sure while at pc or whatever I am not leaning my head out,
It comes and goes and the time before I had posted how bad it was and test showed nothing. Now it seems to be sneaking bac
Try massaging that muscle and straining neck
I know that pain and its no fun