Hey there heatmiser. I'm sorry things are sliding downhill again. But there's a possibility that it still is c-diff - my husband has also been struggling with c-diff, and his doc always says to get at least 3 negative c-diff tests before deciding firmly that it isn't c-diff. Also, we always put the sample on ice, and deliver it that way to the lab, so as to have the best chance of a valid result.
Also, our GI says that once you get past c-diff, you can have post infectious IBS. My husband got c-diff again last September (after being free of c-diff for about 9 months without vancomycin - his first crohn's flare up and c-diff infection coincided and landed him in the hospital for 45 days . .. it was terrible), and his stool sample was positive, and they put him on vanc for 2 weeks. Even after stopping the vanc, he continued to have problems on and off for weeks. He seems to have stabilized now somewhat (other than for the reactive arthritis he was diagnosed with either because of the c-diff, or crohn's or the flu shot).
Our GI says if you have more than 3 continuous days of tummy problems, then, it most likely is either c-diff or crohn's, but if it is a slip here, and it gets better, and a slip there and it gets better, it could be post infectious IBS. He said that for 3-6 months after a c-diff infections, PI IBS could play a part.
So, don't panic yet. And if it is crohn's, maybe it's time for some of the bigger meds.
((hugs)). Hope you feel better soon.
Husband with Crohn's
Diagnosed March 2003 Ulcerative Proctitis
Diagnosed March 2008 Crohn's & C-diff, hospitalized 45 days
Canasa, Lialda, Remicade, VSL#3, Florastor
In Remission since June 2008
Stopped vancomycin for c-diff Jan 1 2009
C-diff free, until Sep 2, 2009
Fighting c-diff, I guess for life