Do you have the following symptoms?
1) Clicking or popping sounds in the jaw joint on function
2) Jaw and facial pain
3) Pain while eating
4) Limited opening or locking of the jaw
5) Ringing or buzzing noises in the ears (tinnitus)
6) Changes in the bite (dental occlusion or disturbance of the alignment) ?
Do you have history of the big yawning or accident or trauma? What made you think that it is dislocated?
This is a definite temporomandibular joint (jaw) dislocation, displacement or injury. Displacement of the other side can occur due to force on other side. The ear pain is quiet important manifestation of jaw joint problem. You would need to consult either an ENT specialist or plastic surgeon (maxillo-facial surgeon) who would replace it back in the socket. Usually no surgical intervention is needed but sometimes sedation is required for a one month old case. Read here in this resource about the symptoms and management;
Please feel free for your folllow up questions.
It does not hurt at all. Yes, they will snap it back. Usually a very easy procedure to perform.