Is it normal that i pick the skin off my fingers/hands?

For about 13+ years now every day I've picked the skin off my fingers/palm of my hands. Not a little bit here and there I mean the entire layer of 6 of my fingers. If you look at your pointer finger you see 3 sections, I used to pick the top 2 off both pointer fingers but only do the first top section on 6 fingers including my thumb, and middle finger (both hands). I used to pick off the side of my thumb and was so embarrassed because sometimes people would notice no matter how hard I tried to cover it up. It only hurts sometimes when I peel too low and it bleeds a little, but other then that it doesn't really hurt. Is this normal?