Every once in a while this scenario happens:
Wake up in the night, check my T1D 8 year old's Dexcom...it will say something like 280. I'll give a correction. Wake up 3 hours later. Dexcom says something really close to the first number, like 280. Correct again, 3 hours later...the same number.
So, you can conclude that the insulin/pump site couldn't be the problem, otherwise the BG would be going higher, and there would be ketones, which there are not.
We recently did an overnight basal test and the basals were nice and steady.
Generally at nighttime the ISF is working fine. This scenario happens often, and it's probably related to a growth spurt or maybe a small virus (??). She doesn't appear to be starting puberty yet, she's only 8.
And it's not like I can forsee the future and give an increase in temp basal to combat this. I just wake up in the morning and think to myself, "hmm, I wish I would have set a temp basal, but I didn't know she was going to be unusually resistant tonight and I didn't want to sleep through a crashing low".
Does this ever happen to anyone? What? When? Why? How? Please?