So for 3 of the past 4 days I've had a friend over that I don't see very often. We did some "fun" things that I don't usually get to do, which included eating out a lot, ordering pizza and going to a fair. So I admittedly ate pretty badly on these days. I was so sure I would regret my actions when it came to getting back on the scale, especially since I've been doing so well when it comes to sticking to my plan all these months. However, I noticed something odd.
Each and every one of these days(I weighed myself the following morning on each of these days) I not only didn't gain any weight as result, but I actually LOST weight, according to my scale. Not a lot of weight, but it went from say 182.8 to 182.2 from the following day(the one I binged on). How on earth can this be? I'll use last night as an example, I completely "binged" in comparision to what I usually eat. I had a cheeseburger for lunch. Then that night I had 3 pieces of pizza hut pizza with pepperoni on them, like 3 breadsticks with sauce and 2 cinnamon sticks with icing. I also had some alcohol, mostly those sugary wine cooler types without much alcohol, but I had quite a few. I also had absolutely NO exercise.
How is it physically possible to lose weight after this when I've been living off 1200-ish calories and exercising daily and I've been stuck at the same weight for 2 weeks??? I just found this to be very odd. I mean, I am thankful that it didn't hurt my weight loss, but still baffled. And this wasn't just one day, it was 3 different days of fairly bad eating followed by a small weight loss. What is up with this?

I'd maybe re-evaluate the 1200 calories/day thing.