I didn't know I had a problem..

Ever since I was seven years old, I've been picking at the dry skin on my legs, lips, arms, and face. My mom was always doing it around me, so I guess I thought it was okay. I also started to eat the skin which causes me to get sick. I also suck my thumb. I didn't know that I had a problem until I googled it last night and for Dermatillomania. Now I don't know if I should bring it up to my counsler, because I know it's a form of self mutilation. And I don't want to go back down that road. So I was wondering if I should bring up or not.