I know exactly what you have because I had the same everything you are describing and almost died. I have c-diff. Ive been in and out of the hospital, colonoscopy and biospys. I am on my 6 round of treatment and everything to the tee you are describing is what I have> it was confirmed in a biopsy. I would seek immediate help to a GI and start treatment. Mine came from Antibiotics , but you can get it anywhere in a dirty toilet, sink, countertop.
I have now lost 71 lbs and better but still can not eat (it has ruined my lining).