Our young boycat, who is a terrible glutton, ate his lunch yesterday and then vomited it all up. He has since vomited clear fluid twice and not eaten anything. He is listless, just lying there where he is usually very active. He did yesterday catch a bird and a snake, don't know if he ate any of it. Should we just monitor him a bit longer, or should we take him to the vet? Our vets are open late afternoon for emergencies today. Tomorrow we're going to be out the whole day, only coming back late in the afternoon.