Agreed it sounds like she needs more at breakfast. The endo can guide you on how much to change her morning ratio — a small change, maybe 1:18 instead of 1:20, for example, and give it a few days before changing anything else to see how it goes.
I wish we could blame virtual school, but unfortunately, that’s probably just a coincidence. Like Dorie and Dennis said, her needs are going to change over time, and it’s going to be extra-super-bonus frustrating as long as she’s still sometimes unpredictably making her own insulin.
But, yeah, get her in the habit of checking before and after exercise, and having those carbs handy so she can catch herself before she drops too low.
And maybe consider less insulin on PE days, depending on timing. Now that our daughter’s on a pump, we actually turn her basal off while she’s exercising, she doesn’t bolus at all for the food she eats during the exertion, and she keeps her basal lower for hours after, too.
When she was on shots, obviously we couldn’t turn her basal off, but she would take a little less of her long-acting insulin on days we knew she would be more active, and that worked pretty well.
She also used to bolus for half of what she ate during exercise. That worked well for years, but then it stopped working and we had to adjust to where she now doesn’t bolus at all during exercise.
It’s just life: always changing. Keeping us humble.