So sorry you guys are going through this Tia.
It’s so frustrating when all you want to do is go about your day and the tech doesn’t allow you to do that. You know we’ve never had super accurate readings with the Dexcom when it’s reading high or low…when it’s in a nice range, it’s fairly accurate (between 80 - 150). But outside of that range, our Dexcom has never been accurate for us. The G6 is making this a bigger nightmare because if you calibrate it, it spits chunks…
Anyway, to your question - I think the BIGGEST discrepency I ever remember is when the Dexcom read 50’s and he was 290 (via fingerstick). I wrote that off to his BGs reacting to the fast correction he got and the Dexcom just not being “caught up” with his actual sugars yet. But it sounds like this was ongoing for you over time, which is a real pain in the a**.
Are you finding the G6 to be MORE accurate, generally, than the G5? Or less? We’ve only been using it for two days now and last night was really good, but yesterday (the 1st 24 hours after installing it) was off a LOT…and calibrating it caused it to give us 5 separate “come back and calibrate in 15 more min” messages.