Yes, I have it. Years ago surgery at 28 for exploratory lap. Had history exposure to chemicals in research lab. Saw this diagnosis on my CT colonography scan in 2017 after my new GI doc couldn’t get a regular or pediatric scope in. I’m in my 70s. I’m careful about food choices as I also have diverticuli. A damaged ileocecal valve from previous colonoscopy also makes things challenging. I would recommend the Monash university app as it is best I’ve found so far. It is often the quantity of certain things eaten. A strict fodmap diet can cause nutrition problems over a long haul. It is not free app, about $8. I’m retired NP and diabetes educator. I’ve seen the wide swings in dietary advice. It can be confusing. Different health care providers don’t always have good background in nutrition. Moderation in all things. Good luck.