I was in a auto accident over 5 years ago wich dislocated my jaw. I saw multiple MD's & DDs, who recommended jaw surgery (which would not relieve the pain). This also aggravated my TMJ. My symptoms were widespread. Including; Migraine type headaches ( when i woke, & even in my sleep, constant threw out the day), chronic muscle pain, gastric problems, ringing in ears, & nerve blockage (which lead to all sorts of random symptoms).
I finally found a TMJ specialist who worked wonders. He informed me there is a new group learning and practicing as a group to treat & understand the condition (I was excited but leery).
But I began treatment & after 3 months my symptoms were either gone or actually diminished to not bothersome. However it is a long process (depending on the severity 1-2 years) I am in the final stage.
If you wish to find out more the link is at the bottom (he is based in Utah, but works with many other providers threw out the world) I will see if he has a link to find them, in the mean time you can always contact his office.
I wish you the best.
PS; while the techniques above (from the above posts) help me mildly. Once I started this new TMJ treatment they were only needed rarely (but that is me. The doc should teach you which one's are needed at each phase) And the good ones have financing available (for those of us that are not rich :).