I'm a 16 year old girl. I never bit anyone as a kid or anything like that. I have been diagnosed with OCD, Severe Clinical Depression, and a Generalized Anxiety Disorder. I am on medication for those things. But I have been having the urge to bite things lately. It doesn't matter what mood I'm in. I just randomly have the urge to bite things. I mostly bite myself; I could never bite another person. Yes, I have been self-harming for a little over 4 years, so maybe it's just another form of self-harm, but it's getting pretty bad. The bite marks last about a half hour. I've only broken through skin once. What is going on with me..why am I biting all of a sudden...