I have a severe cutting past as well, most of the time when I get stressed/depressed/anxious my wrist and arm where I used to cut hurts and when this first started happening I was seeing a shrink who told me this is normal because in the past I used cutting to deal with all my negative emotions so now when I feel those emotions my body is expecting me to cut.
I was very addicted to cutting, so it's really like when I feel that pain in my arm I'm having a "craving" like you might have with any other addiction. I don't know if this is true for you but it might help.