My 6YO DS has taken to what i can only call self-harming. when he thinks he has done something "stupid". His dad and I sometimes catch him hurting himself eg, digging his nails into his lip or into his arm and leaving a noticable mark, or punching himself. What's really worrying to us is that he does it when he thinks we are't looking, so i don't think he's looking for attention. He's not copying anything seen at home. Although his dad and I aren't together any more, we have a v amicable relationship and we give him loads of positive encouragement and praise. Has anyone got any experience of this, or offer any advice? We arereally worried......