He is almost 4 (Feb 16, in fact) and weight 7.5lbs. He had never had any trouble with hypoglycemia, even when I got him at <8 weeks old (didn't know any better then...do now). Hubby left windows open, which we will talk about.

I agree. I'm glad my meeting didn't last any longer. He is really used to a particular schedule that leaves him alone less than 2 hours a day. I am concerned about the symptoms. Sometimes he goes 24 hours without eating with no adverse effects. He just isn't a big eater, plus he wants someone to watch him eat. He had never acted hypoglycemic, but I think the shivering burned all his glucose. I am a people nurse, so I have a good idea what to watch for, but he might have something else going on so I'm gonna ask for some labs. 2 of the 3 vets in the practice graduated from Auburn, and there is no better vet school as far as I'm concerned. (The one I saw last time was the nonAuburn grad, but it was an emergency). Thanks for the nudging to get labs done. As a nurse, I have a tendency to "just watch him" if symptoms have resolved.