I understand what she's saying...some days I am hungrier than others. I don't know why. Maybe it's psychological. I think the weather has something to do with it, also how busy I am, my menstrual cycle, tons of stuff. Some days I eat 2500 calories and still feel hungry (or still feel like eating, rather). Other days I eat much less (1300 or so) and feel completely stuffed. I don't ever eat less than 1200 per day, which implies every day, but on occasional days I tally my calories at the end of the day and find that I'm under 1200, and still feel satisfied. Again, it's not often, but occasionally. I think that if you truly feel full, you should stop eating and not worry about it, as long as it's not a regular thing.