It's a pretty dumb life move to collect disability if you don't need it. I mean, you are condemning yourself to poverty and being one bad thing away from death.

Crohns is diagnosed via a biopsy iirc, it's not a diagnosis of exclusion like IBS is. Crohns is also horrific. so I wonder if you just view your friends poor health as a typical "no one wants to work anymore" way like most people do with disabled people. Fibromyalgia is somewhat a diagnosis of exclusion, but decent doctors can mostly figure it out these days. The hard thing is discerning whether it's ME CFS or not.