To be fair on my horrid evil body, those couple of weeks were a step or ten beyond 'normal' for me... fried breakfast every morning, two courses for pretty much all of the other meals plus tons of snacks all the time because somehow I even found the room for those. And a not inconsiderable quantity of booze every day. So it's not really the truest injustice. I know what you mean though, I notice sometimes when you're trying hard, all it takes is taking your eye off the ball for like ten seconds and you've undone three weeks of hard work.
I do ok with maintaining my weight during proper normal eating although I know I'd defo gain if I wasn't getting any exercise, probably just on alcohol alone, and I'm not even a particularly heavy drinker these days.
2 poached eggs on 2 slices wholemeal toast
Salad w/ chicken and lemon pepper dressing
Beef casserole w/ broccoli, cauliflower & mashed potatoes
1 vodka w/ diet coke. so far.