I think your anxiety is playing with you, because an anxious
stomach causes loose stools
and cramps. Relax
and don't worry. You didn't eat any! And even if you did, not everyone gets it.
For example, I have a huge fear of vomiting, and when the stomach flu comes around my area, I freak out, thinking I have it. I have nausea, diarrhea, etc, but I've never thrown up. I think a lot of times the anxiety can really cause your body this stress.
And the IBS?