Well, a stress disorder could be some kind of anxiety. It could be depression too. Post-traumatic-stress-disorder? Since I'm not a licensed therapist/psychiatrist I can't actually diagnose you. That's why I suggested you see a therapist if/when you can.

I suggest you post in the Self-Injury forum (http://forums.psychcentral.com/forumdisplay.php?f=17) if you are going to self-harm. There are many helpful and loving people in this forum and it deals solely with that.