Does anyone else's cat do that? My Lily does that every time before she's getting sick, like tonight, when she threw up her food - and a big hairball!
It's a loud, painful cry, and meanwhile, I know what it means - time enough to make her leave the carpet. It's such a heartbreaking sound!
Luna, btw, doesn't do that. The only exceptions were when she once got sick at the vet's (in her carrier), and when she was so terrible ill in March 2009 that she couldn't stop vomiting for days. I suppose her stomach hurt terribly from the constant vomiting, and she cried in pain (not as loud as Lily, but more miserable). Needless to say, it's been one of the most horrible nights I've ever been through.