wtrpk: I don't remember how you got hurt, but the headaches and neck and shoulder pain may be related to your ear/jaw pain. Have you been examined for an upper cervical neck injury?

The head trauma that gave me my concussion also did some damage to muscles in the upper cervical area. This can create tension on or otherwise irritate surrounding muscles in the skull, shoulders, and upper back. According to my doctor and my physiotherapist, this explains in part some of my vertigo, headaches and pain in my ear, face, neck, and shoulders. So my physiotherapy is aimed at reducing these symptoms by restoring the muscles to their pre-accident state.

My dentist also speculates that my head trauma damaged some facial nerves, leading to tooth and jaw tingling and facial pain. I don't think there's anything you can do about this sort of damage except hope that it heals over time.