Do you feel guilty when you eat food that might make you gain weight?

No one type of food will make you gain weight. It's normal to feel guilty because society makes you feel that way. We do bad things all the time without feeling guilty because we're raised that way. Normal isn't necessarily good and visa versa. What people know as correct is constantly changing. There are currently too many dogmas surrounding health and nutrition.

It's normal and it's not. while food is a big part of our life, I lives shouldn't revolve around food.

Sounds like the start of an eating disorder

Sounds like the beginning of an eating disorder called Orthorexia which is the term for a condition that includes symptoms of obsessive behavior in pursuit of a healthy diet.

Do you obsess over it a lot? Does it make you feel so guilty that you wanna work it off or stop eating?

I feel guilty over it too. I eat a whole box of chocolate, I get sad, and then I'm using my exercise equipment to work my ass off the next day. I'm so glad exercise is a thing or I'd be fat again. XD

not good, but normal