Very, very, very scary event!!!
As you are always the first to jump in to try to help others facing challenging situations, in that same spirit, I’d like to offer a list of suggestions that may help you unravel this odd and dangerous pattern. Some of these suggestions may seem silly or you may be well further along than this in figuring out what is going on. I apologize in advance if any of these suggestions annoy you … but they are offered in the hope that they may be of help to you.
For starters, do you have, or can you get, any of the newer shelf stable glucagon? On two occasions a number of years ago when I had a “scary low”, I was able to self-administer the old dry-mix glucagon. I realize that may not always be possible, but it is a useful option in those situations when juice doesn’t seem to work.
Have you carefully checked ALL of your pump settings to make sure that you don’t have an error or typo? While I don’t know anything about an OmniPod, it seems as if it is easy to enter an incorrect number for basal rate or carb ratio and yet not trivial to see or find that error.
Have you gone through all of your pump and Dexcom logs and reviewed what you ate for the past 24 hours to see if you have any hidden clues? I know that I am prone to errors … particularly when I am trending low. For example, for a pre-meal bolus I’ve entered 85 grams of carbs instead of 55 … and not noticed it until many hours later after trying to unravel a crashing low. I have also entered a finger stick BG level in the grams of carb field which is almost always a bad move.
I certainly don’t want to insult you by suggesting that you look for errors, but on more than one occasion I have learned the hard way that I, at least, am perfectly capable of making jaw-dropping errors. While it is certainly likely that you may be experiencing a physiological shift on basal needs, I also think that it is worthwhile to check for possible errors or other explanations.
I sincerely hope that you are having an uneventful night tonight …
Please stay safe!