im a mail 26. ive gained 25lbs in one month sence this started happening.i havent gained weight in at least ten years. aboutonce or twice a day usually at dinner time i start to feel sick and get stomach cramps like when you need to poop. sometimes im buissy at work and eventually ill feel like im starving ill eat food and feel fine and then my stomach swells up. after that i feel full and perfectly fine. i know i get enough to eat probably twice of what i need.