I gained 40 lbs in the past 4 years...and I too, often ask how did this happen? The way I've answered it have been in three ways:

1. I always thought since I had a pretty face, my bod could handle a few pounds.
2. I've always been "big," but really I realized I've always been taller, not bigger.
3. Finally, when I'd got home after a night of guys flirting and paying attention to me, I would have tons of confidence, which allowed me to eat. The versa of that would be that when I was in a horrible mood, food was my comfort and if I was eating badly, I would say, "who really cares anyway." Man, so much has changed in my life.

Erin