I don’t know what they tested for, but he might not have been given the fact that he is young. I’m 95% sure he wouldn’t have been tested for hyperthyroidism either since it’s so rare in young cats. I really do need to call again and find out, I’m just afraid of getting dismissed. I’m not trying to sound like I know better but I think the vet might take it like that. I really am tempted to go to another, the one we used to take my pets to when I was a child. I’m sure that particular practitioner is retired by now, he was probably in his mid fifties 25 years ago. But they have good reviews still.