I am sorry to hear that you have a pain in your jaw and ear and are unsure what might be going on. I am happy to give you some of my initial thoughts about what might be going on, but to be honest with the limited information that I have been given, it will be hard to give you an accurate diagnosis of what exactly is going on in your case. For this reason I am going to recommend that you make an appointment with an ENT (Ear Nose Throat) physician to get evaluated. They will be able to take more of a history, and examine you. Also they are well equipped to diagnose and manage problems with the jaw and/or ear. As I am sure you are aware, the temporomandibular joint (TMJ) is located underneath your ear canal. In fact, it abuts the ear canal. This is why joint problems can be interpreted as an ear ache in some patients. This is also why some pathologies within the outer ear canal can cause joint discomfort. If there is enough inflammation within the joint, there can be limited motion or mobility. This is why a good ear exam is crucial in the differential diagnosis. If the ear exam is completely normal, then the ENT will be more inclined to evaluate and work you up further for a TMJ disorder. I hope that this helps, and I wish you all the best.