My teeth are achy. Top molar area on both sides and bottom left molar area. My neck feels tight, my jaw feels tight, no way can I eat a frozen dessert it zings my whole head, but not immediately takes a few minutes. Drinks with ice are fine, as well as hot coffee. I have been to the dentist, I have received a fluoride treatment for sensitive teeth. I was just fitted with a tooth grinding device. Hope that helps. Any thoughts? Thank You