Hello, I am very confused about why I am not hungry for about three or four days straight. I am 15 years old, and I am about.. 150 pounds. I know, I am a little big.. but I don't understand why I am never hungry anymore. I still eat a little bit, but I am not 'bloated' I just don't seem to have that feeling that I am hungry. I will go about three or four days, then wake up and be STARVING! Can someone please explain to me why is this happening. I used to be hungry all the time, and now I can't seem to be able to look at food. My stomach has gone down a little bit since this started happening.