For the past year I've been tired and unmotivated every day no matter how much I sleep. I've had sleep problems ever since I was little and even then I wasn't tired at all. I have autism and I'm also born with a heart defect. I recently got it checked out (I get it checked every second month), and there was nothing wrong with it. I am somewhat active and I excersise. I can't concentrate on anything at all. I used to love reading and writing stories but now I don't have motivation to do it especially when it comes to details and describing things. My fatigue seems to get worse, and I don't know why. It gets harder and harder for me to get up in the morning especially when I have to get up early but I'm still motivated enough to go to work.. I've tried to reduce my work time but it doesn't really help. What could be wrong?