Cheat meal leading to waking up leaner?

Want2BHealthyy

Hey everyone, so I've noticed a bit of a pattern over the past two weeks. Last Saturday me and my friends went out to a festival, I didn't eat much and I danced (to trance music) for 6 hours straight, then the next day me and my friends went out to a brazilian bbq restaurant & I was eating what ever I felt like, I was enjoying my meal though and eating slow but I felt satisfied at the end of the night, and both my friends ate a little more than I did and then walked out feeling sick. So I thought that was a little weird that I didn't feel full aswell. Anyway same happened this week, so I ate normally how I would in a day, and I actually didn't even train yesterday because I had a huge migraine (I train 6 days a week and do 30mins cardio & 30-45mins weights, which I have done for the last 5 days in a row)
So yesterday I ate:
Breakfast: Quest bar & Apple
Lunch: Salmon salad
Snack: Carmen's clusters w/ crushed nuts, oats & cranberries (cos I went grocery shopping so I just picked from the box)
then I went to sleep because my head hurt so much and when I woke up I had about 100g chicken
Dinner: 1 tuna & avo sushi roll, 1 vegetarian sushi roll
Dessert: Fondue w/ churros, strawberries, marshmellows & banana bread

Btw usually I wake up hungry so I eat a proper protein / carb meal & then Ill have a snack aswell but yesterday I wasn't hungry when I woke up. Anyway, so after eating that dinner, my friend walked out of the shop feeling full & sick again (she ate a little more than me again), and I walked out feeling really good, my tummy was a little full but I felt really good. So I was wondering again why I wasn't as full as her. Then I woke up this morning and I looked in the mirror and my stomach looked flat!

So my question is, why is this happening, and what should I do to follow it up today (what type of training should i do, should i just have a massive cardio session, and what should i eat? like should i eat more protein today or eat like normal)

Thanks!!

LolBroScience

Its not that much food, so your activity level probably outweighs that of your calorie intake, especially over the course of a few days rather than one day.

Eat like you normally would.