Overnight lows

[Eddy Edson]

Wearing a Libre has revealed that I quite often spike down into the 2's overnight. Then I wake up (it wakes me up?) and I'm quickly back into the 4's. These from the last 3 nights (plotting data downloaded from Libre reader):








This with a new sensor - as usual, the new sensor agrees excellently with fingerpricks during the day for the first few days; diff often zero, never more than 0.2! Kudos, Abbott.

So I'm inclined to trust the overnight data. I'm also 90% sure the troughs aren't to do with lying on the sensor or whatever.

I don't think they matter hugely by themselves, if I'm waking up and seeing my levels head back into the 4's pretty quickly. But I am wondering if they mght be a sign of something-or-other & whether I should harass my doc to refer me to an endo or something ....

 

[everydayupsanddowns]

Really interesting Eddy. Cortisol (and by extension glucose output from the liver) reputedly dips at around that time, but I’ve not seen such a distinct and brief BG nosedive, repeated multiple nights before.

Certainly seems like it would be worth asking about it.

 

[Eddy Edson]

Really interesting Eddy. Cortisol (and by extension glucose output from the liver) reputedly dips at around that time, but I’ve not seen such a distinct and brief BG nosedive, repeated multiple nights before.

Certainly seems like it would be worth asking about it.

It's a puzzle - hopefully not *too* interesting 🙂

 

[PhoebeC]

This technology is just amazing!

Hope you get some answers

 

[AndBreathe]

Wearing a Libre has revealed that I quite often spike down into the 2's overnight. Then I wake up (it wakes me up?) and I'm quickly back into the 4's. These from the last 3 nights (plotting data downloaded from Libre reader):

View attachment 13082

View attachment 13083


View attachment 13084

This with a new sensor - as usual, the new sensor agrees excellently with fingerpricks during the day for the first few days; diff often zero, never more than 0.2! Kudos, Abbott.

So I'm inclined to trust the overnight data. I'm also 90% sure the troughs aren't to do with lying on the sensor or whatever.

I don't think they matter hugely by themselves, if I'm waking up and seeing my levels head back into the 4's pretty quickly. But I am wondering if they mght be a sign of something-or-other & whether I should harass my doc to refer me to an endo or something ....View attachment 13082 View attachment 13083 View attachment 13084

I have to say, for myself, I really can't trust Libre data overnight. For me, it almost always records readings of 2.2, or Lo. Whilst my levels run quite low, I'm pretty comfortable they aren't that low.

The Libre usually suggests I'll have an A1c in the teens, whereas my last, and lowest was in the 20s, as per my signature.

I'm curious to know how you ascertained the low number wakes you, as opposed to you rouse and turn over, decompressing the Low.

 

[Eddy Edson]

I have to say, for myself, I really can't trust Libre data overnight. For me, it almost always records readings of 2.2, or Lo. Whilst my levels run quite low, I'm pretty comfortable they aren't that low.

The Libre usually suggests I'll have an A1c in the teens, whereas my last, and lowest was in the 20s, as per my signature.

I'm curious to know how you ascertained the low number wakes you, as opposed to you rouse and turn over, decompressing the Low.

Most often, sensors start wimping out for me after a few days and reading progressively lower vs fingerpricks - so like you get I get A1c estimates which are lower than eg the 26 I (like you) had at my last test.

What I'm talking about here is with sensors which agree excellently with fingerpricks. The nosedives down into the 2's are transient spikes downwards, not prolonged.

Of course it's possible that they are all due to me lying on them, but I don't know why they would be so transient in that case, and why me waking up & shifting would happen just as the reading bottomed out after a brief nosedive, repeatedly - rather than the nosedive waking me.

And bystander reports for some of these events suggest that I've been sleeping as I always do, on my back in a position unlikely to compress the sensor.