Got back from our morning walk (woods and fields) and all seemed fine. About an hour later, the pup started vomiting. He walked around the garden retching and puking for fifteen minutes. The vet wanted to see him, so took him straight there. He vomited again in the waiting room, which was handy because the vet could see the contents. He thinks he's eaten a mushroom of some kind. Hi gums are pale and he was wheezing a bit on the exhalation as well as shivering and with a very 'sad' body shape. Vet has kept him in on a drip and is doing liver and kidney function bloods, but there isn't anything else to be done but wait. Going mad here waiting for the phone to ring.