I have had diarrhea now for about a month. Mom took me to the vet and I stayed there for the night while they checked me and took my stool for a culture. I was then given this bitter tasting blue pill that was called Metronidazole and a paste that was yummy called Florentine. They have not worked, My stool is runny, and I stopped using the litter box because I have associated it with feeling yucky. I have gone on my moms bed and on the floors. The vet says my culture came back and it showed I had high levels of Cryptosporidia, and thinks the next step is for me to have B12 shots for the next week, as well as maybe some Tylan powder. Has anyone had this problem? If so, please help!!