I randomly clench my jaw at night when I'm stressed. I know I did it bc my jaw will hurt and I usually get a toothache/soreness in my molar. Well I must have been at it the other night bc my tooth has been throbbing and sore since the weekend. The dentist said to ice it and take ibuprofen but it's not getting better. I even started wearing my night guard to make sure I stop clenching. Anyone very deal with this? It hurts and I want to eat..