Is there something wrong with me?

It's very difficult for me to empathize with people. I can't remember the last time I was extremely happy or sad. I hurt myself all the time and do stupid things. I don't particularly like pain, but I find new ways to hurt myself. The other day I swallowed bleach mixed in water just to throw it up again. I do crazy things that could get me hurt or kill me, like car surfing, climbing stuff I shouldn't (I tressp ALOT) and going a bit too far when It's just me and something sharp and pointy. I don't know where I get these self destructive tendencies. I'm not angry or sad. I'm quite happy. But happy people don't do this stuff. When I was younger I would torture/kill animals for fun. I dunno maybe it has something to do with the hurting myself thing. I have very little interest in what people around me are feeling. I lie more than I ought to, about things that don't really matter. I'm just listing stuff now haha.