This sounds very familiar to me. I am at times very socially awdward and I have no reasoning behind it. I always feel as though someone is watching me through my windows at home. I also have a pretty good judge of people. I try not to but if it comes down to me opeining up or not I know if they are trustworthy. Usually not. At one point in a manic state I was very delusional and felt that God gave me the power to feel what others around me were feeling just by looking at them and wanting to. It was a great feeling and it really seemed real. I was told it wasnt but you never know what we can or cant tune into when we are that way.