when i was at school, the whole not-eating-that-often thing was usually just how it went, since the cafeteria was only open so late (and the food was generally disgusting), the deli closed really early and wasn't open on the weekends, and i'd only have so much money to spend on places around town. i did start to overindulge when i went back last august, eating more ice cream than i used to and i did gain a few pounds, but i think that was more because i started birth control pills over the summer. my metabolism has always been really good.
i did gorge myself when i first got home, and i've never really been able to stick to goals i set for myself - dieting, exercising - but lately i noticed that i've been drinking a lot more water and eating a lot less, so hopefully that'll help things.