I actually called and canceled the appt. because Molly seems to be totally fine today and she is eating, drinking, playing, purring, etc. I can only surmise that it may have just been a minor bug she had or just the stress of getting a new baby brother this week. I'm keeping a close eye on her and if any other signs appear that make her seem not quite right, I'll get her in for a check up just to be sure!