There is NOTHING wrong with you, I promise. Some of us like pain, yeah. But it isn't good to cause yourself pain. You should figure out why you do it, and try some alternatives, at the top of the self harm forum. You aren't alone. Feel free to PM
me if you like. And I know when I experience a LOT of pain, I laugh uncrontrollably. I think it has something to do with laughter releasing endorphins, which helps relieve pain.