picking is changing my whole life

My names Emily, 20, from Louisiana. When I was a little kid, I always had Indian Fire.. being allegric to mosquito led any bites to swell and leave sores all over my body. I would pick at them CONSTANTLY even though I knew theyd scar easier by me doing so. I have always stressed easily. I lost my fiance at age 17 after having moved so much because of my parents going back and forth. I started picking at my arms and feet.. leaving sores. I never thought too much of it, just a habit. Until I started to pick at my scalp. I pick at any little thing I feel should not be there or doesnt feel right. I often bleed after picking, & that seems to satisfy me. I have been diagnosed with bipolar disorder and also a personality disorder, and I am somewhat OCD. Is this some kind of ocd disorder? Im unsure if I should seek professional help.