Sudden High Blood Glucose mornings/Sudden Low at Night

Can anyone kindly offer any explanations about the following ?

I would be very grateful..

I have had type 1 diabetes since 2019 and my last a1c was a very healthy 39. I don't think it has ever been more than 43, and I have not have excessive numbers of hypos, and it is very rare for my blood glucose to be more than 10.



However, recently my blood glucose has gone extremely and obstinately Low at Night , and then shoots up in the morning.

By high, I mean 10 mmls plus, and by Low I mean sometimes something like 3.7..

What on earth is going on?!

Thankingvanyone with any suggestions!

Hi Ellie,

Thank you for your detailed reply!

I take 3 units of levemir in the morning, and 1 unit of Novarapid just to help with the dawn phenomenon... and then I have 4 units of levemir at night.

I have Libre.

I have noticed in the last couple of weeks, that in the mornings, my blood glucose has been for me particularly high at 9+ mmoles.

Then suddenly what has developed is, (last couple of days) I have hypos towards the end of each evening after say about 9 o'clock--- that don't seem to respond to multiple snacks..keeping in hypo mode for hours..... keeping me awake to the early hours as I continue to monitor the blood glucose levels , and then finally it gets to a reasonable measure of blood glucose and i feel is safe to go to sleep .

Then, around 6 o'clock in the morning, BG has been 9+ mmoles again. This is very unusual for me!

If I do not at that time inject my morning Levemir, and the Novorapid, ----and if I wake up a bit later like 0900, or later... then I find my blood glucose has shot up to 10 or 11 mmoles!

Again this is very unusual for me.

I realize I may have to adjust the Levemir, but I don't want to do that until these results are consistent enough to require definitive action, and for example I am pretty clear that it is the levermir that is insufficient.

The hypos from around 9 o'clock in the evening seem a bit strange.

One other thought I suppose is that I might be having too much insulin for my evening meal?

A maybe the sumoji effect is the result of this overdosing of that meal?

Thank you for your interest.

Thanks Ellie. I dont think it can be just out honeymoon as I was diagnosed in April 2019, and no c-peptide 2 years ago...?

The Somoji thing would be totally new as well as sudden if that was the issue.

D. Phenomenon I am familiar with ---but the numbers are suddenly dramatically high.

But I will focus on basal as you suggest.