Omg, could this be what I have? It only started when I was pregnant.. you know, underneath your molars on the inside under your tounge? I have had a huge rock hard lump there right under my smallest molar ever since last year, when i had to have the largest molar extracted because it shattered. On top of that, i thought i was getting a wisdom tooth in because a peice of tooth broke through where the wisdom tooth had been on the side, but then it chipped off and stopped growing. Should i be concerned?