'Cause even if I am really really hungry, I will often start to feel really full after the first few bites. Is it because I have a fast digestion, or is it because I digest food too quickly???

I'm not the type of person who stays full for a long period of time, and I will often feel a bit hungry 2 - 3 hours later, but I will get full easily.

Also, I'm quite skinny and get lots of sleep every night. x