Hello, I own a mini yorkshire terrier, 12 years old, He is fine in himself, barking and playfull, but when it come to eating he struggles eats a little then is sick, lately it has changed so he can only drink alittle then starts to go limp so to speak. I have booked an appointment with the vet, but thats not for a few days, i am very worried his health, its come on so suddenly, i am fearing the worst!