Hi. I am Scott Boarman - Age 50 - Very Healthy - 6'1", 190 pounds. I play a lot o tennis and take Arthrotec prescription as an anti-inflammatory pill for my knee pain.

I have a hard lump on the inside my mouth by my lower teeth just below my lip - it is hard, not red, not painful, but has stayed there for 3-4 days now. I don't every recall having this before. I may have bitten it accidentally a few weeks back but the bump arrived 3-4 days ago. May I have your suggestions on what it could be?