I am a 25 year old male with severe and crippling Crohn's disease. Simply put, my digestive system is in complete disorder, and fails to function even close to properly. The technical side of what's happening is my immune system is overreacting to the gut microbiome, and attacking it, causing severe and consistent inflammation across my colon. The consequence of this is severe abdominal pain daily, unless I have been fasting for between 24-72 hours. Once I get well into a fast, my symptoms transition from unbearable to uncomfortable.
The closest thing I have to clarity on my condition is that I have a genetic susceptibility to sensitive digestion, and living in America, and eating our fake food for a quarter century has essentially broke my gut, with a very miniscule chance of reversal of the condition (Western medicine declares Crohn's treatable, but not curable).
About 8 months into my severe symptoms, I did a complete scan of my system with a double colonoscopy and a dyed CAT scan in an attempt to give me some insight on possible solutions. I discovered that a large portion of my colon is scar tissue. The scar tissue clogs up the passages of the intestine, such that digestion is stalled, and oftentimes insoluble fiber can get stuck, stopping digestion dead in its tracks, and causing severe pain.