I've had a problem with my stomach since yesterday.

I've had stomach problems since yesterday. I baked waffles at home for lunch. The mix made with our wheat was too sweet, so I mixed it with barley flour that I had at home and added an egg and baked them in a waffle maker. I like them a little crispy, so I baked them again in the air fryer. I made some dream coffee and enjoyed it, but after about two hours, 🚻 again 🚻 Twice yesterday, 4 times today. This is ridiculous. I have to go out. What could be the problem? Could the butter be the problem when baking waffles? It's been about a week since I bought them.