This is interesting to read - my cats have never been sick that I have noticed but just this time - I read on the medical records - to expect some generalized illness from the shots in some cats. I NEVER knew that!! I guess it is just like with skin babies Lizzie and Robbie get their distemper next week so I will be prepared now. I wonder why the vet has never mentioned this before?? Maybe because he is used to neurotic Meowmies like ME who will recognize evry possible symptom?? Then again - this is only my second time with babies so maybe the older ones are less likely to be ill? Emily and Eliot already had their first so my only baby distemper experience has been with them when they had their second set. Also, mine get only distemper, so that may be the reason as well.