That must have been scary. I doubt that Rags has a fever. I'm beginning to think that going over to the vet alone first and asking them some questions might be enough. Cuddles is an extremely active tiny little guy. He fights hard for nipples, but he tends to lose. That's why I've been trying to watch him and put him on another one. Maybe his problem is stubbornness. He'll fight a much bigger kitten for a nipple when there is an unoccupied one nearby. He is spunky, but maybe not very bright! I sure hope he makes it. I like his personality! Rags might not be sick, or maybe it's minor. It's possible that the noise is snoring, because she mostly does it while she's reclining.
Sometimes I overreact, but then again I don't want to make the mistake of not acting when I should.