 Tonight, it's day two of the convention at the RNC. They'll focus on making America safe again. Former GOP candidate Nikki Haley has been added to the list of speakers. This is ABC News. Oh, no. Stomach issues again? Stomach issues? Who are you? Your pancreas. I could be the real reason for your diarrhea, gas, bloating, stomach pain, or loose oily stools. I thought it was my stomach. People often do. But any of these symptoms could mean having a condition called exocrine pancreatic insufficiency, or EPI.