I sleep in the day - stay up all night. This is not just a passing phase of insomnia, but more of a lifelong pattern since childhood. I have always felt more comfortable in the dark and the quiet. I hate noise around me - other than my own choice of metal - and can't stand crowds of people at the best of times. I find that I function, feel and think much better at night. My mood even picks up. If I could, I'd sleep all day and only live by night. What is wrong with me?