Ahhh, yes, the stomach as the "second brain." I went through YEARS of having gut pain and all the docs wanted to do was tell me I had IBS and prescribe me pills (which made me sicker, by the way). I finally decided to do a bit of my own trial and error and figured out I had a slight lactose intolerance. That means I can eat a little bit of cheese at a time but definitely no milk or yogurt. The creamier the dairy the worse it is on my stomach.