Clare,
Your whole mouth may hurt or not hurt at all. Some cavitats can lye dormant for long periods of time and not cause any pain then all of a sudden be a problem.
My whole face hurts esp. my jaw joints and muscles in my jaw.
I could have just a bad case of TMJ or could be cavitats. I will find out in January.
Please look over Dr. Shanklands site it tells you most everything you should look for. One of the big symptoms is a sour taste in your mouth.
Hope this helps.

Veg