I have three cats (two five year olds and a ten year old), one of whom was just being treated for pemphigus. He's always had pemphigus and has always received shots to treat it with immediate results and maybe one day of lethargy afterwards. My vet was out of his normal medication so I was given eye drops instead to administer for a week. He's been incredibly lethargic and entirely not himself since I began his course of treatment, but it ended on Friday and he's still not himself and still seems kind of sick. Both he and another one of my cats have started sneezing since he started his medication, which I thought was weird. Now all three of my cats are lethargic and have decreased appetites. These have been very healthy cats aside from the pemphigus and I've never experienced anything like this before. The little boy who was being treated has a huge personality and I was thinking maybe since he's so much different than normal that it's affecting my other cats? Has anyone ever experienced anything like this before? I am bringing them to the vet, but I can't get them in until Friday. I'm just so worried about my little guys.