Is there such a thing as a social anxiety upset stomach?

I wasn't feeling well most of the day. Then, all of a sudden I felt fine. Now, I am hungry AF. I think it was just some social anxiety acting up even though I've mostly been in self-imposed "solitary confinement" all day. It's just that I don't want to start using social anxiety as some convenient excuse for everything. I just needed time alone, I think.