I really have no clue as to what this condition is, but it sounds serious enough that it should be seen right away by the emergency vet. If this were my cat, I wouldn't wait.
She might have gotten into something when she was missing. Take her to the emergency room right now!!!!!
doesnt sound too good a vet trip now would be good.Sorry I have no idea what it could be,but let us know how you go.good luck with your kitty.
Ya know when shanks and pen were dieing they smelled like they were rotting....Its how i knew to give up.
Hope alls well
Have you gone to the vet yet? This sounds very serious. Please let us know. Anita
I hope you went to the vet...
Kitty could possible have caught FIP