Jaw pain, headache and ear pain and pressure? also have painless lumps under chin and jaw not sure if related? no fever. pain relievers not helping

Go to a dentist: From what you are describing . You might be having a tooth infection and the lump under your jaw is a lymph node .. Also you might be having a partially impacted third molar or a wisdom tooth with pericronitis . Usually they give ear pain and headache .. Please have your dentist to check you out for a proper diagnosis or assessment

Comprehensive exam: ...By a dentist who has also a background in TMJ dysfunction will be very helpful in diagnosing your condition (if an infected third molar has to be ruled out). Palpation of the questionable structures will be done to determine if the lumps are indication of cyst or lymphadenopathy. More tests or referral will be needed for further diagnosis in complex cases.

ENT doc: Sounds like TMJ except for the lumps. See an ENT doc to assess the lumps. If negative, See a TMJ expert. Any dentist can be a TMJ expert with the proper training and experience. Most commonly, oral surgeons, prosthodontists, and orofacial pain specialists. Ask your MD, your dentist and your dental society for referrals.