Follow-Up: I first became aware of clenching my teeth at night as a teenager. My cheek somehow got between my teeth and i almost bite a piece off-yuck. In my 30's the painful symptoms set in big time. I get headaches and tooth(one in particular)aches. Interestingly I clench on the left side only!! The right side of my head has no symptoms at all and the teeth on that side are not worn!! Hells bells! any body with any info please forward to me.