You should go to your General Dentist (or a dentist specialising in TMD) and get fitted with an occlusal
splint. This stops clenching and
grinding. Prolonged clenching and
grinding can actually cause TMD, cause it displaces the joints. Muscle relaxants. such as Valium, may aslo help the muscle spasms.
You may also have a back problem, because the muscle that leads to your jaw joint originates at the middle of your back.