ChubbySadie:
For some, the answer will be, "since birth I guess." But for those who haven't always been heavier, when was the moment you realized you crossed over into being considered fat?
It really dawned on me when I tried jumping across a puddle and landed right in the middle of it. After some experimenting, I learned that I couldn't jump anymore. I wasn't strong enough to physically move my body vertically.
After a bit more experimenting, I also learned that I can't run, either. I'm too fat to get any kind of lift, and it ends up just being a quick walk.