I would answer, but I've, uh, got important science-y stuff to do. Laters! :p
*sneaks back in* If memory serves, it was SIBO which didn't raise FC. Other bacterial infections do, however. I'll see if I can find the study again.
Yeah, I can:
www.ncbi.nlm.nih.gov/pubmed/18431069As for c. diff, this somewhat dense abstract shows that positive c. diff stool samples had a higher FC level on average than negative c. diff stool samples within a hospital setting.
www.ncbi.nlm.nih.gov/pubmed/24464697And finally, here's an article which is denser than a black hole, but basically, yeah FC is much higher in patients with c. diff infections compared to controls.
www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0106118So there's a good chance it's c. diff and not Crohn's. Hope this helps; I'm kinda braindead.... >_>