My insulin needs went down like crazy for a few days. I know it happens when you get some beta cells back for a while—but that time was a bit freaky. My basal needs went down from 1.25 to lower than 0.75 in one day. I took me a couple of days to adjust that much. Even though I was using lower temp basals, some days I had to eat 150 carbs or more.
I am mentioning this because normally I really trust Loop at night to keep me out of really bad trouble. But, one night (the first night it happened), I had to eat more than 80 carbs. I am pretty sure Loop would not have dealt with that.
I don’t know how much longer I’ll have these kinds of episodes. From reading FUD, I figure that most T1Ds end up killing their beta cells dead for good. My point is, though, that Loop isn’t enough to deal with some things when you are a teenager. It’s not a perfect life insurance (despite what I wrote to @mlg here).
Btw, it took me about 10-12 days to progressively get back to where I was before. I had to adjust my basal pretty much every day over that period: sometimes it was too high, and sometimes too low, it was not an easy process. In part, it is because I am accustomed to ignoring little variations over a day or so: so suddenly changing my settings every day, sometimes more than once, is a big change.