OK here is my story.. ALL MY CATS HAVE BEEN SPAY/NEUTER ALREADYY.. so the last cat I took is a female and she is 9 months.. THEY SPAY HER AND WHEN SHE GOT HOME SHE DIDNT WANT TO EAT.. SO I THOUGHT IT MIGHT BE NORMAL BUT SHE DIDNT EAT FOR 2DAYS STRAIGHT.. SO I TOOK HER TO THE VETT THEY DID'NT FIND ANYTHING WRONG BUT A HIGH FEVER.. SO THEY GAVE HER MEDICINE.. SHE GOT BETTERRR.. LONG STORYY SHORTT.. AFTER SHE GOT BETTER MY OTHER CATS STARTED THROWING UP.. BUT THE DOCTOR SAID THEY HAVE NOTHING WRONG.. CAN IT B A VIRUSSS??? SOMETHING WRONGG.. I REALLY DON'T UNDERSTANDD AND IM REALL CONFUSEDDD CAN YOU LADIESS HELPPP?? THANK YOU!!!!!!!