Very low thyroid can also lower blood sugar.

I hope your meter is not low in the battery, and your strips are
fresh too. That matters to get accurate readings.

Let us know how the appointment goes. I'll be thinking of you.

Thanks for asking about Oreo....she is on steroids now (Prednisolone) for a two week pulse and taper, and is now pretty active and frisky. The vet said she would feel better on them.
They may help her gain some weight (she needs 2 lbs to get back to how she looked in the picture in my siggie).

She is enjoying the weather outside, so at least I can watch her have these last days in a happy mode. (If I had gone thru with the invasive surgery, she would be a mess right now and in pain.) We can't expect her to live much longer, but perhaps she will at least enjoy what she has left.