I've always bitten and chewed my nails. It's related to skin picking which I also do. Last year I picked the skin on my feet so badly it bled and I limped because of it. I've spoken to my GP and he suggested its on the OCD spectrum, although obviously I know its very complex.
Essentially, this is beyond just nail biting. My thumbs are so sore, they are cracked and bleeding. I've tried everything to stop, I do it without even realising.
I was muttering earlier about how sore I was and DH blurted out "well stop chewing your thumbs then!". Feeling defensive I joked "haha stop smoking then"
Admittedly not a very mature response but I felt embarrassed and this habit is a very sensitive subject, as DH knows. He said it was hardly the same, smoking has physical withdrawal etc. I've given up smoking, I know how hard it is, the problem with this is I don't even realise I'm doing it. If I try and stop the compulsion is like my skin is crawling.
Now I feel like DH doesn't really appreciate my problem. AIBU to think its just as valid a problem in terms of difficulty in giving up? Any fellow sufferers out there with any advice?