Feel bad for eating

I’ve just ate a pack of Reece’s cups and 2 microwave pizzas and some fries to go.

I feel so guilty and bad :( I was eating very well then suddenly I ate this crap :( my face is itchy because I shouldn’t eat gluten.

Why do I do this? Any advice how to make it not make me fat? Do I have an eating problem? I feel like going to sick it out