lack of emotional response?

Well i think I'm in a bit of a pickle. My emotions don't seem to really work that great and im only 20 yet so cold to everything. When I laugh, it feels forceful due to people being around and not naturally to where I cannot stop, I can't make my self cry, and I don't really get effected by anything people say. it's really effecting my social life and it's been going on for awhile. Is there anything that can help me?