I forgot that it's three times below 50 before dropping. He was on 0.1u for so long before the hyperthyroidism. I've buggered it all up!
I doubt he's bouncing from overnight. More likely it was the drop in insulin that's completely buggered it up. And I'm at work today so won't be home to test. I can fly home during lunch but that's it.
I can't re-test during the night. I have a suicidal teenager and my anxiety is always so high that it makes my chronic fatigue even worse. Just being awake long enough to test at +3 is a challenge.