welcome to the world of dermatillomania! (also known as CSP for compulsive skin picking) i have it too and do the same exact thing (even since i was about 7) this is usually a stress/anxiety disorder that includes picking at your own skin, biting nails, cutting/biting/eating skin (or all of the above) i personally don't find it gross because ive done it for so long but it might be wise not to bring it up in conversations with people you dont fully and completely trust :) i honestly dont suggest trying to take any sort of medicine to try and prevent it because ive tried many different types and they just dont really help the fact that you are doing things to your skin. ex: prozac, and other antidepressants. im not depressed and never have been really, im quite a happy person and consider myself fairly normal so if you go to your doctor and ask for some help, you might not get what is exactly best for you. Because dermatillomania is fully understood, trying to talk to your doc. about it might be a little difficult, and especially trying to explain why other than saying that eating your skin just feels normal. No, there are no real problems or medical repercussions or health issues as a result of it, just try not too go too far when cutting in so that you bleed and get infected but thats about it. dont feel alone! :)