Off to the vet's again

I called our local vet in Holliston and we have a 1pm appointment. I described the morning's activities and the consistency of his vomit (now a thick, mucous with a yellowish brown color) and she wants to see him ASAP. He's also not interested in drinking any water and I noticed that his nose is dry and his lips are more white than pink. Thankfully he is not running a fever so hopefully this is not a true emergency situation. More later when I get back......