I had this along with the discomfort of a clicky jaw, which made eating unpleasant. I mentioned this to my chiropractor, who with my permission, contacted my dentist, who in turn, was delighted to be contacted by a chiropractor. The dentist confirmed my jaw was out of alignment and my teeth worn down through grinding, which I was unaware of. He made a mouth guard to cover my lower teeth to wear at night. This helps my jaw to relax in alignment. I absolutely hated wearing the mouth guard at first, but persisted and it has really helped. So I suggest discussing this with your dentist. The mouth guard cost £40.
