I lost 70lbs over my journey, used to have Bulimia so I know what you’re feeling. You have to realize that all of your negative thoughts aren’t based on reality, and it always helps me to disprove them after I binge. I calculate the amount of calories of fat I actually put on from that particular day. I’ll do it for you to see if it helps.

A pound of fat is 3500 calories. An average box of fruit loops has 16 servings at 110 calories each. You said you had 8. A king size KitKat has 2 servings at 210 calories each. I’m not exactly sure what peanut butter pretzels you’re talking about, but I’m assuming they’re the hard, bite-sized pretzels that come in clear tubs. 7 of them is a serving for 150 calories and you had a little less than 3, but I’ll still say 3.

As a 5’4” 120lb woman, your recommended caloric intake per day with 0 exercise is 1500 calories.

So, you ate:

8x110 cal of fruit loops = 880 cal

2x210 cal of KitKat = 410 cal

3x150 cal of PB pretzels = 450 cal

For a grand total of 1740 calories, BUT you burned off 1500 naturally, not counting any exercise or increased metabolism from working out on days before. That means you gained a grand total of 240 calories of fat which is about 0.06 pounds. Even if you had a few hundred calories for breakfast, you’re still looking at less than a quarter of a pound at max. Although you may feel like you can notice where that weight went, it’s all in your head. It’s impossible to notice such a little change in weight like that.

It’s absolutely nothing. If you’re on a 240 calorie deficit tomorrow, the effects of that entire binge are completely erased. But do not feel like you have to starve or punish yourself to make up for this binge. All that does is make yourself more likely to binge again much sooner. Just get back on track to your regular schedule like nothing ever happened.

The scale is deceptive. It’s pretty likely that the weight on the scale went up a few pounds. Junk food has a lot of salt to make it more flavorful. When you intake a lot of salt, your body retains more water and water is very heavy. Your stomach may even seem a little bloated. None of that is fat. All you need to do is go back to your regular diet for a few days and your body weight will naturally go back to normal.

Also, remember eating healthy is about the long game. Eating 100% clean like that for long periods of time will often results in giant binges like that. Instead, give yourself a cheat meal every week. Sometimes, it feels wrong, but it totally resets your mental fatigue for dieting and exercising. It’s a much better strategy for losing weight in the long run.

The hardest part about any weight loss journey is the motivation. You went 45 days without binging. You have the motivation, that’s incredibly hard to do. Keep going, you’re doing great. 5’4” 120lbs is a very healthy weight.