Ben has a brand-spanking-new tooth. It's SHARP. It really hurts when he bites, but chewing on things helps his gums feel better, so I can't complain.
However, this explains why he hasn't been sleeping through the night lately. (Oh, I know- poor us. He's been sleeping through the night since he was 2 months old). Last night, we gave him some teething medicine and he slept through the night again! Hooray! It's just hard when you get used to things being easy. :)
I'll try to get a picture of the renegade tooth (if he'll let me).