Oh dear, the Freestyle Libre sensor is playing up… Rather a lot!

Well I finally seem to have got my hands on a crazy sensor. Six days left and it has managed to display all the issues others have seen within 24 hours. The reading have been out by 20%, it seems to think I spent half the night with a glucose level below 2.2 in spite of being at 5.6 on waking and stable at that for an hour, and most “amusing” is the “hypo” I apparently had between one and three am that recovered to exactly the same level as it was at before with no intervention from me, and was registered with only 6u of levemir on board as active insulin. It then proceeded to drop to low and stay there, which I’m afraid I just don’t believe given the waking level. 

Looks to me like the levemir drop over night was below the 1.6mmol/l required for basal, so I think I actually got that right last night. 



I’m in the unusual position of having an additional sensor and reader because the reader test strip slot is broken, so I am going to run the two sensors alongside each other for the next few days and see what the results are.

I did notice last night that in the gym my sensor looked like it had lifted a small amount on one side, and it was a very sweaty gym session. I’m wondering what the outcome of the side by side test will be, or whether I’m actually starting to see some form of irritation happening under the sensor, as that is what seems to have driven the discrepancies in others. Time will tell. Roughly 6 days of it.