Do I have a problem? Should I see a psychiatrist?

Ok, so ever since I can remember I have not had any care or sympathy for other people. It is like this thing in my mind that I just really do no care who I hurt and have absolutely no care for other peoples feelings or things like that. Even people close to me. In relationships, I am always cheating and at work I would tread all over someone if it got me to a better position. In a way it is quite nice, because it seems like some people worry so much about these things but I cannot understand it so it does make me feel lonely and isolated sometimes. Other symptoms are like world news such as deaths or tragedies have absolutely no affect on me, while other people are weeping I am just interested in seeing the action. It is like an amusing story for me. Other peoples pain does not bother me either i.e if someone close died or someone hurt themselves or got ill I would not care. I would act like I cared to fit in and not be noticed, but deep down I wouldn't feel anything. I described this in another forum and someone suggested I was a "sociopath" but I am not sure because I do not have evil thoughts or urges to actually hurt people myself. I just do not care about other people basically. What is wrong with me? Do you think a psychologist might be able to help?