Can tmj go away on it's own without having to go to the doctor? and what precautions should i do or be aware of?

Depends: TMJ may be caused by trauma (such as an auto accident), stress, tooth position and many other problems. If the cause is removed the TMJ may go away on its own. A consult with a TMJ specialist will give you some answers..

Yes: Yes. Mild TMJ disorders may improve over time in many cases. Seek evaluation by 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.