Ritzy, be a good girl and let your mommy get you in the nice comfy wonderfully spacias kitty hideaway (don't want to call it a port-o-prison when you want to get her into it ), and be nice to the vet too. They are only trying to help you, so let them do that and then you can bring your wonderful Ritzy attitude back.

Good luck at the vet, and if they aren't doing what you think should be done (sedating her to take tests, etc), insist on it and don't take no for an answer.

Fingers, paws and tails crossed that she will be ok.