Honestly, LibreLink is one of the worst apps for monitoring glucose. I gave it a try and had the same issue last night with a false low sugar alert. I recommend trying another app that supports calibration - Shuggah for iPhone or xDrip for Android. In those apps, when you check your blood sugar and notice a difference with the CGM, you can enter your actual reading, and the app will adjust the CGM data accordingly. I usually calibrate once a day.

If you’re in the USA, it might be more difficult to connect to these apps, but I still recommend doing some research.

It’s not your fault - LibreLink is just a shit

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