Cipro ABOLUTELY promotes C. diff growth! So, suspicion should be high.
Ally, VSL#3 does not necessarily retard C. diff. Once you have had it or are exposed to it, the spores can lay dormant for a very long time. You do not need recent antibiotic exposure for it to activate. Just having your resistance low can do it. It is not your fault. At least now you know what is going on and can treat appropriately.
Jan