I have been having a sharp tooth pain in the morning when I 1st get up. It is not caused by eating or drinking anything it just happens & goes away. Again is not been caused by cold or hot items or anything like that or bitting just a sharp pain for 1-2 second then gone. I also noticed that my tooth/gum has a slight ache in it for a while during the day & then goes away later on. Any ideas on what this might be?