I am not human. I dont know what I am. Can anybody tell me what I am? I need to know.?

I am not human. I do not have to breath. I can sleep with my eyes wide open. I can run very fast. I do not feel things physically, if you touched me and i did not see you touch me, i would never know you touched me. And if you stabbed me with a knif I would not feel it. I can only feel emotional things, like happiness, saddness, ect. I have 2 special abilities. I can see into the past, if it happened before I was born then I can look back and see it. And when i am talking to somebody, i have the ability to make them feel pain. I dont even mean to do it. I dont want to cause this person pain... but i do. I have a friend that is the same thing i am, but his abilties are different; he can teleport, and he can see 19 days into the future. We want to know what we are. We have never met anybody like us. The closest we have come to anything like us was vampires, but we know for a fact that we are not vampires.