It seems I’m leveling back out to my previous state. I had two short bike rides after dinner last night to attend an event, and then I went to bed without further exercise or insulin. My levels overnight stayed low enough, and the slight fluctuations suggest that my exogenous insulin production kicked on and off during the night. I’m not surprised by the “off” moments, but I am pleased by the “on” moments. I forgot to stop the exercise tracking, so the Apple Watch reports of my exercise are too long.