Hello I am sorry you are dealing with all this stress of C Diff. I had it in June 2020 and what a nightmare it took my body over a year to recover. I had one relapse but continued to have symptoms even after being tested negative for CDIFF the toxin test. Never did a PCR. I was diagnosed with post infection IBS. I am still very careful with my diet zero sugar and only all the good carbs no white bread completely gluten free multigrain. Stay away from the sugar and bad food as it feeds the bad bacteria and it triggers CDIFF. I have heard of people getting a positive test for PCR but not the toxin. People can continue to have a positive PCR even after a year but I would repeat the toxin test if I were you. It all depends on how you feel.
Are you taking Saccharomyces Boulardii? I took S Boulardii along with probiotic. I stopped the S Boulardii after 6 months but I continue now to take probiotic 50 billion per day. And I eat very clean. Make sure to eat sauerkraut and drink kefir I buy the coconut one no dairy I completely switched to dairy free and gluten free.

Please ask away and wishing you a speedy recovery. Please keep us posted and good luck!