God i know the feeling. Admittadly, i LOVE junk food, but even when i try really hard to lose weight, i cant seem to shift it, and people (myself included) always seem to think that its the (fat) persons fault for eating too much, but it's not!!! (always!). Then when you try to explain to people what you do eat and excercise ect, they always seem to find fault in it, yet in reality, i eat no more junk than the average person, but i gain weight just thinking about food! and everyone else seems to maintain theirs! It's so annoying. Sorry i know this isn't the answer as to why, but i ad to have a moan about it too!!!!