... on Vanco and Flagyl without success. Feel really good on the Dificid but noticed today the watery stools I am 90 years old. this all started after getting the flu and pneumonia and sepsis, the strong antibiotics gave me CDIFF, went back to hospital where was treated with 3 weeks of Flagyl. after 5 days off the flagyl the CDIFF was back and was given Dificid. Doing good on the medication but the stool is watery. Is the normal while on the medication?