self-harm as punishment

i saw this mentioned in a forum reply already but it's totally applicable to why i self harm and i feel like bringing it up as its own topic. i self harm when ifeel guilty about doing something wrong or falling short, or disappointing people. its gotten a little bit better in the last 2-3 years but for a while i would punish myself for not eating, ovver-eating, sleeping in, not sleeping well. i would always find a reason and do at least SOME amount of self-harm, ranging on how "bad" the thing was. i wonder if this is OCD?