I wouldn’t put the Libre on now. You are getting enough data be testing. As for the +3 test, I should have been clearer, only get the +3 if the normal preshot test is blue. Otherwise, if green, let him be.
The not eating much is a bit of a worry, might be worth that vet call. Have you ever tried freeze dried raw? Or air dried by Ziwipeak? Low carb with crunch. With freeze dried, you gradually feed with more and more water.
Update for the evening - just tested and his blood was 99, so I will not be giving him insulin tonight.
Today he played and acted silly, quacked at me a little, as well as gave himself a thorough wash, so I know he was feeling good.
He ate FF Beef, Weruva Lamburgini (grain, starch and carageenan free, 7.6% carbs in the metabolizable energy profile on their website) and Stella and Chewy's Chick Chick Chicken dinner morsels.
The Stella and Chewy's does have pumpkin seed in it so it is probably not as low carb just plain freeze dried. Toeby eats a wee bit of that, but his brother likes it more.
I don't know if I've seen freeze dried raw in a kibble form other than the Pure Bites he gets for treats.
I know I have seen Ziwipeak canned here - I will check on the air dried.
So far, the Stella and Chewy, and the Primal Nuggets from Primal Pet Foods (both made in the USA) are the freeze dried meals I've seen.
I will keep an eye on him as far as eating... I think so far it is fussiness more so than lack of appetite - I know he can be stubborn as hell.
He has lost a bit of weight, but I was encouraged today with his numbers and how he acted.
I won't hesitate to call the vet if he seems to be poorly, no worries.
I will be contacting the clinic this week to see if the vet who diagnosed him will look at his spreadsheet.
I don't know about others' experiences, but this particular clinic, even with lots of vets on staff, has been a pain to connect with due to their approach to Covid-19.
As far as the Libre goes, maybe it will go back to Costco so I can get my money back - I never touched the boxes at all.
I myself, am pinching myself the last couple of times I tested him with the numbers I am seeing.
Fingers crossed the morning is good.
Thanks for your help, I do sincerely appreciate having someone with experience read my posts. Truly.

Laura