I went to a ramen restaurant yesterday and ordered a pork belly skewer. On the skewer there is normally 3 pieces. I ate a little more than half of the first piece. After eating I noticed that the part I didn’t eat was pink/raw looking. I immediately left the rest of the skewer after seeing that. How worried do I have to be about getting food poisoning or a parasite infection?

If you were going to get food poisoning you'd probably know by now. Parasites are rare so while it's technically possible I don't think it's worth worrying about unless you start to feel sick or weird.

I mean my stomach definitely feels off and I did have diarrhea last night.