I have the exact same symptoms and I have TMJ. Many people just develop it because of facial structure. Injuries can make it worse, but you don't have to be injured to have it. I've had very good luck with a bite guard my oral surgeon made for me. I don't wear it all the time, only when I have significant pain or clicking. It isn't a cure, but it really helps.
The TMJ like any other joint in your body is complicated with tendons,ligaments muscle attachments. TMJ dysfunction can have many facets and causes. They can be muscular in nature or structural. It has also been shown that there is a psychological component. From your symptoms it would seem yours is structural. My experience has taught me to refer these patients to a dentist who specializes in TMJ disoders. I prefer a conserative approach. If this is not possible then they have been doing successful arthroscopic surgery. I think the most important thing is to get a professional that specializes in this area.
Hiya, have you been checked for TMJ? That could cause the pain in the jawbone along with the pain in the ear. I have had it radiate through my jawbone down into my ear and neck and ohhh it hurts...good luck.