Cheryl,
Thanks for your reply. I'm so sorry to hear your son is suffering with this. It can get so very bad. I too have had this problem for over a year now, and the headache hasn't let up for a single minute. It's unbelievable.
I do think that both my discs are anteriorally displaced. I have had tomos done, but my dentist did not explain them in great detail.

( I have been wearing a NM splint for 3 months with zero improvement. I'm going to see a TMJ specialist in a couple of weeks. I go back to dentist #1 tomorrow. He never made any adjustments to this NM splint I have now, and I guess tomorrow he "might" make an adjustment. Ughh!
I can't take this kind of pain and I can't take pain meds. I'm in agony, and I'm tired of all the work it seems to take and research and analyzing everything trying to find answers since nobody in the medical world has been helpful to me yet. I'm afraid for my future.
I will keep you posted on the TMJ specialist I see. I just can't believe how severe the muscle spasm is all over my head. It's unreal. I hope it's not a bad sign for prognosis.
My prayers are with you and your son. This is so hard to go through,
Looney