I have a 3.5 year old piggy who is showing a few signs of a URI, heavy breathing w/little click & dull eyes. He is eating, drinking, pooping & moving around. I just noticed his "dull" eyes yesterday & today noticed the breathing & clicking. I have an appointment for him first thing Thursday (today it Tuesday) morning w/my exotic vet. Is that too long to wait?? I have read horror stories of people's piggies dying overnight from URIs. The vet isn't in the office on Wednesday, should I hunt down another vet who could possibly see him tomorrow?