I know that I must have been rising, and the insulin curbed the rise (or I went higher and came back down again). But at first glance it just seems like that insulin I took disappeared.
This type of thing is really scary when the amount of insulin taken is a LOT (relative to my daily dose).
Or (has this ever happened to you?) I bolus for a snack, then something happens and I don’t eat, but never go low? What the heck? Does that mean I would have been super high if I would have eaten that snack? Makes me scratch my noggin sometimes.