Thanks again for your help. Otis is back to his usual self, and his usual morning routine too. His blood glucose this morning was 111, so for now, no insulin. Our vet (who is wonderful) preferred that we do home glucose testing every 3 hrs today, as that's the info he wants, and it's much less stressful to do at home than in his office. So that's where we stand for now.
I've been reading about remission and also about honeymoon periods, so I guess we will just have to keep testing until we know the scoop. Luckily this incident made my husband a glucose testing expert. In the month since Otis's diagnosis, I have tried many, many times to test, and never succeeded. I have been relying upon urine sticks, but I know it's not anywhere nearly as good. Now that my husband can test, hopefully I'll be able to use his technique and finally get it right!