A dentist who is well trained in the area of TMJ is the best place to start. Of course other professionals who believe TMJ is a problem instead of a myth are also a good place to start. They will be able to co-ordinate your treatment. Treatment based on evidence is always better than belief. If anyone tells you "I dont think you have TMJ" then their treatment will be more likely based on beliefs instead of evidence.
This information is FYI only. It is not intended to provide treatment
or recommend treatment by any means or methods. Any health problems need
careful diagnosis by your attending doctors.