Why does cheese digust me so much? I know it sounds like trolling but I'm serious...?

It's normal to not like cheese - we all have different tastes - but it's not exactly normal to be disgusted by it to that extent. I'm the same way about fish and seafood though, and even living fish freak me out - I can't swim in a lake or have an aquarium in my house. My vet told me to feed my cat tuna for a few days when she had bad hair and I spent three times as much on cans of chicken because the tuna grossed me out so much.