Hi thunderbolt sounds like you are depressed? How old are you? Sounds to me like you have a great mind! Talk with your friends then a Dr? If you feel something just is not right? It sure won't hurt to talk?
To me it would seem strongly that you do, but I am not a doctor. I used to feel a very similar way and was diagnosed with manic depression and went to therapy which I found really helped me think about thing in my life in different ways. To me I won't ever find what makes me not feel empty; the point was not to fill it up but that fact that enjoying my life was far more sufficient. Sometimes I feel life and our own bodies are just sacks that we have been placed into and to just take care of them and enjoy our lives the best way we can that makes us feel good. Talk about your worries or emotions with someone professional and good luck.