My emotions are totally blunted. People talk about it and bring it up with me. I personally believe it is in part a response to what I went through several years ago when I was abused and tortured. Part of me died as a result of all that, there is no question. I'm here, but not all of me is. Add to that the fact that I am on a pretty good dose of lithium and it isn't really surprising that people notice this.

So, there are lots of possible explanations here, as mentioned by the wise people above. You need to consider and evaluate all these sorts of things before you head down the road of thinking you are a psychopath. Oh, and one last thing. I am certainly no psychiatrist or psychologist, but I am pretty sure no actual, card-carrying psychopath would ever write a post like you just did. They simply wouldn't care.