Oops, last post, “They are popping our of thin air” should read, “They are NOT popping out of thin air”. One other thing, check your carpets and check your own selves for fleas. There is a chance when you first brought the cat home the fleas got into the carpet. I had that happen once and they are hard to get rid of.
That's what I was wondering, if we've never actually gotten rid of them.
If people carry fleas inside (as the vet said), why isn't every house infested with fleas? Makes no sense to me.
I rather suspect that the fleas laid eggs in the carpet. With an indoor cat, treatment has to out last the next hatch. Treating the carpeting helps.
If you have out door kitties as well, as we do, pet them but don’t pick them up! They are typically loaded with fleas.