When I eat, I end up with nausea, stomach pains, and loose stool very shortly after. Doesn't matter what it is, everything seems to go right through me. This happened a couple years ago so I only ate yogurt and cucumbers for months. Then I introduced food again but beef never seemed to settle so I cut it out of my diet and until now it's been smooth sailing. I haven't eaten beef in at least a year so I'm thinking there might be another reason behind this.