pain on n off?

Question

man,,,,my molar on my left side has been getting sore on n off. it started last month, some days its fine then other days its just sore like if i tap it, it will hurt....and not just that..my back teeth on my right side have been hurting on n off, but not like sore, it feels like im teething, i have to bite on something to ease the pain, it drives me crazy, and the bad thing about it is, i went to the dentist today, and he said he doesnt knw wats wrong! so... im pretty much fycked here

P.S my left molar is already crowned

Answer 1

sounds like the nerve is going bad in the crowned tooth..did they take an x-ray..sensetive to cold???,,,,,on the right side to your gums bleed???