Gee.. ((((HUGS))))) This would have me so stressed and upset and the #*&%^$# doctor won't listen and wants to put him to sleep?! I would still be on the phone calling until I found a vet that would see him today. We have vets around here that are open on Saturday.. I wouldn't tell them of all his other histroy, just that he has a rapid heart rate and you have noticed that his eyes are not responding to light and you want someone to see him before it turns critical.

After he/or she saw him and made a diagonses, then I would explaine about the other stuff and how the other vet wanted to put him to sleep and you don't think that is called for!