I have never experienced this problem before. I woke up and did not eat anything because we were in such a hurry, so I just drank some milk. I went berry picking for 4 hours and when I was back in the car I ate popcorn, a peanut butter sandwich and bread with cheese. Then I came home and drank water. I had some chocolates that hadn't been eaten yet, so I ate two macadamias covered in chocolate and chocolate covered crackers, right away I went to brush my teeth with whitening Colgate toothpaste to take a nap. I remember pain was disrupting my sleep. I don't usually grind my teeth, Ive never have. I woke up and thought it was a dream, but my one front adult tooth and the one to the left of it were hurting when the slightest thing tap from another tooth touched it. One tooth has a very small cavity I have a close eye on. The other one has a filling, but this filling is a couple months old. I started moaning and stuff because of all the pain, I put ice in a paper towel directly too the teeth, it relieved it for a little bit but it came back. My sister recommended to swish my mouth with salt water thinking it was bacteria, I did but it only made a small difference. They aren't sensitive to cold or hot things, just hurt when pressure is applied. I wanted to know if there was anything I could do before making my decision to go to the dentist. Also I looked in the back and front of the two teeth and nothing was there. Please and thank you ~Kim