Ugh, I know that feeling. I recently (at 28!) had a wisdom tooth decide to come in, and because my teeth are already so tight, it hurt so much and I could barely open my mouth at all. I was pretty much living on Ensure until I could get it removed.

Then when he took it out, I wanted to cry, apparently most teeth only have one root (sometimes two), mine had three, so it took him over half an hour, and I was like, clutching the chair and as stiff as a board. D:

I hope it's nothing serious, OP!