LO is 17 months and has started doing this ? When he gets mad at us (like if we take something from him) he gets mad and will bite his own hand ??!! It's like he doesn't know what to do with himself but he just needs to do something ? Help! I hate this ! It doesn't happen often but once a day for sure:(

Also- he's getting his molars and has been particularly mouthy anyway. But- he is not a biter (yet).