Quincy is correct. I've had c-diff twice in my life, the last time was this past May. The way it was diagnosed both times was through a stool study, where they will check for other bacteria as well as c-diff.
Diagnosed with UC in 1992 (Left Sided - first few flares, Pancolitis 3rd flare).
10 year remission
Flaring on and off since Jan 2005, currently suspected to have Crohn's
Current medications: Weekly MTX injections, monthly B12 injections, Calcium, Folic Acid, Xifaxan
All 5ASA oral medications except Dipentum (no effect), Immuran (toxic reaction), Prednisone, Flagyl, Cipro, Bactrim (sulfa drug allergy), Augmentin, Rowasa, Cortifoam, Cortenema.