All I can comment on is the fact that for quite a few weeks everything I ate went in one end and out the other ,when I say everything I mean everything ,this was early last year  ,and I lost weight then I had a positive fit test which lead to me having a Colonoscopy and a CT scan but thankfully nothing sinister was found ,If they have flagged up Crohn's Disease I'd be thinking along those lines rather than anything more sinister ,if you have any questions on the Colonoscopy just ask ,I've had 2 now so might be able to help .

Thank you so much for your reply. I’m the same literally everything is going straight through me. I’m tired and weak as you can imagine. I am scared of the colonoscopy but I’m being sedated will I be in pain afterwards?

The only thing I could eat I found ,was white rice so I started making homemade rice pudding everyday and it worked and things went back to normal ,I tried imodium for weeks they did not work ,I stopped trying to eat any normal food and just ate white bread toasted ,white rice and a few other things nothing spicy greasy or fatty ,I know its a pain but its worth it ,the 2 Colonoscopies I had were both fine no pain and they are able to tell you on the day if they have found anything bad .