Hi, and welcome here. I don't want make you feel worse, so if you have to, just disregard what I'm about to say. I don't believe that the world exists, or that anyone else does. For me, physical contact (or any other human sense) is not enough to prove that anyone exists or is "real". Now, I believe you are beginning to become skeptical, or paranoid. Like others have said, you should probably go to talk to somebody about how you're feeling. Sorry I don't know if I have contributed anything...just trying to help and relate. I don't think I'm that great of a person but I'll always listen to what you have to say.