Got home from routine vet trip and he starts vomiting. Vomits over 10 times and then panting. Rush him to emergency vet hospital, by now he's vomited more and had the runs. Vet just called to say he's on oxygen but they are worried about his breathing and doing bloods. He's a house cat so can't have ingested anything. His sister is perfectly fine. I'm so worried. Sitting outside waiting for news (and praying insurance will cover this, it's over £500 already) please send positive thoughts ....