My daughter's gastro emptying at 6 months of age when it was first checked was borderline normal. Which means that it was on a slow side but bottom of normal. The upper endoscopy showed a chronic but inactive gastritis with a chemic sensitivity. When I probed doctors to explain more about chemical sensitivity they told me that her stomach would have low tolerance to NSAID's like ibuprofen and it's not like I was getting it more than a few times in her lifetime. And btw, her intake of Tylenol has to be limited as well because several years ago she had a prolonged period when her liver enzymes were up (at one point up to 500) and her liver biopsy was showing mild liver inflammation but nothing specific for a liver disease). So, we cannot say for sure if she has Crohn's or UC. But it was unusual, that her first flare came out of nowhere and quickly became acute for a child who never had a prior history of diarrheas and basically was on EEN for years already. Even though she had extensive medical workouts in the past for her health issues that affected her eating and GI, this was the first time she got a colonoscopy. She did an upper endoscopy at 6 months, and it was OK. It's interesting that her recent inflammation episode got her gastro emptying to slower down to the point that she could not tolerate feeds - she was vomiting them.