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Libre 2 not registering hypos

I've been having issues with Libre2's alarm either not going off when i have a hypo, or going off when i don't have one. It happens too frequently to be a dodgy sensor. My hospital specialist has stated that Libre can be unreliable in reporting hypos.
 
I've been having issues with Libre2's alarm either not going off when i have a hypo, or going off when i don't have one. It happens too frequently to be a dodgy sensor. My hospital specialist has stated that Libre can be unreliable in reporting hypos.
Yes I agree, I found the same, so my hospital transferred me onto Dexcom and I have to say that has been really helpful. It generally calls me via the phone 20mins in advance of my blood sugar going too low. So I really like it and have given it positive feedback.
 
I'm not yet formally diagnosed with RH, but currently having tests for my hypos. Meanwhile, I've a question about the libre 2 and how it records hypos. I had very bad hypo symptoms the other day that took me a while to come out of. While I was experiencing the symptoms, my libre 2 wavered between 3.9 and 3.8. This continue for about 20 minutes. I couldn't do a finger prick at the time, but I think if I had it would have confirmed the hypo and I might even have read lower than 3.8 (I find the libre sometimes will say 4.1 when a finger prick reads at 3.6, for example). The problem I have is that I'm wearing a libre 2 so I can demonstrate to the endo that I'm having hypos, but it rarely registers them on the app as a low glucose event. In this particular case it shows a very rapid decline from 11mmol to about 4mmol, but the hypo itself didn't register, despite reading under 3.9 for ages. This has happened to me loads of time and so it's very difficult to "prove" my hypos through the libre, even when I'm very symptomatic and finger prick confirms. Has anyone else experienced this?
I set my low blood sugar alarm at 4.3, so I get plenty of warning however, I am aware that sometimes this is not going to actually result in a hypo as it's just a low reading before my eaten food starts releasing the energy. I find random readings are common on the Libre 2 (much more now than when I started in 2017) and find it's better to look at the longer pattern - past hour, than micro-manage the immediate reading. Maybe set your alarm for 4.3 or 4.5 and then monitor the overall trend for a week or so. Hope this helps
 
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