I was the same exact way. I always felt as if I had done some heinous crime even though I'd done nothing wrong! Whenever I conceived of doing something, my brain made me feel as though I'd already done it. I also constantly felt hungry and fat but I had maintained my weight. For some reason I was also not getting a timely menstrual cycle, so my doctor prescribed a birth control pill to me. In addition to now having a timely period, I am also far less hungry, and far less paranoid. I think a hormonal imbalance can be a possibility. Even if u are a guy it's still possible so definitely consult a doctor.