hand picker and biter

I am new. In fact, FINALLY I found out what I have. I have been to doctors who can't explain what is wrong with me, even a neurologist-who should know! So until today (finding this website) I thought I was the ONLY one that did this. I felt like a freak because people would notice my hands when I'm talking (because I forget and use my hands)and interrupt me and ask "Oooh, what's wrong with your hands??" I hate when I have to stick out my hand for change or etc. I'm afraid they will ask about my hands or react like they are afraid to touch them. I try to wear gloves as much as possible but when it's 90 degrees out, I find it hard to come up with a good excuse. I pick/bite/cut the inside of my hands constantly. I even do it to the point that it makes me sick and to the point that I can't grasp things because they are sore or bleeding and they are too raw to do anything with them except bandage them. Then I need to keep them dry so that limits me from really getting anything done all day except dealing with this picking problem. I am just so sick of it and tired of doctors that don't know what it is. Does anyone else have this type of problem with doctors or this type of picking in particular? Thanks.