New problems?

I realized this morning that my little trichster has started biting his toe nails, as well as biting through his clothes until they have holes in them. This seems to be a new behavior that has never been noticed my family before. All I can figure is he can continue to play his nintendo game with both hands while chewing on his clothes and or toe nails (you should see him twist into a pretzel to get at his toenails while playing his game.) I will have to talk to his therapist about these new behaviors. I did get a picture of him biting his pajama leg, but it shows his face so I didn't want to post it.