Today, the old sensor was having trouble on and off since the morning hours. It also had issues before bedtime last night. Not good at all if you don’t know you’re dropping and you don’t feel it.
Before changing the sensor, the numbers kept going all over the place and also disappeared. When the numbers disappeared, there were question marks instead. Very frustrating!
Still in the warm up period right now. Will do the calibrations near 9 pm tonight with the new sensor.