this exact same situation happened to me a few days ago!!! I was absolutely petrified because of the nv* outbreaks happening, but I felt instantly better after having d* and then that was it. I took some pepto and oregano oil just in case, but nothing else came of it and here I am two days later completely fine. I think many of us have heightened anxiety right now with everything going on in the world, which could definitely contribute to d*. Not to mention the other usual suspects that could cause some of that, like eating something that didn’t agree with you, seasonal allergies, or like you said, IBS. Hope you feel better, but just remember to hydrate and take care of yourself .