Get you a night guard, go to the Pharmacy and ask
for an over the counter night guard. My dentist made a nightguard
for me. And yes it does help with you teeth hurting, neck and head. Try Synesodyne toothpaste, that will stop the pain in your teeth. As far as the neck, head and specifically shoulders go to a Massage therapist and tell them to work firmly on your back, shoulders neck and head. Be sure to drink a lot of water after the massage.