Why do my sugars rise overnight

[fiona35]

I have already posted this message in the type 2 diabetic forum but someone suggested posting it here to see if it has anything to do with my insulin timings? The response on the other forum was to do with Dawn Phenomenon.
I’m on basal Bolus and inject my Lantus around 9.30pm each night, dinner is around 7pm, so Novorapid is injected around 6.30pm and I try and low carb.
When I can afford to buy the Freestyle Libre, an interesting phenomenon keeps cropping up but I don’t know why!
I go to bed usually around 10pm and my sugars are between 7 to 8, but from around 1am when I am asleep they start rising to peak at at 3am, then drop back down till around 6am then start rising again till I get up at around 7.30 and it’s 9 something!!
Should I just not bother eating any dinner?
Thanks for any suggestions

 

[Deleted member 527103]

The drop could be DP as suggested. The rise might be related to the non-flat profile of Lantus. Some people experience "extra potency" from their Lantus after about 5 hours causing drops in the middle of the night. I know your drop is a little more than 5 hours after your Lantus dose but you could try taking it earlier in the evening and see if the timing of the drop moves at all.

 

[fiona35]

The drop could be DP as suggested. The rise might be related to the non-flat profile of Lantus. Some people experience "extra potency" from their Lantus after about 5 hours causing drops in the middle of the night. I know your drop is a little more than 5 hours after your Lantus dose but you could try taking it earlier in the evening and see if the timing of the drop moves at all.

Thanks for your suggestion. Will try moving the Lantus to dinner time and see what happens.

 

[rogaits]

I would add two things, the first one is that if you are eating anything with high-fat content at dinner time this could make the carbs in your meal to be digested later in the evening. So a meal will initially appear as being fine but generate a glucose peak 3-4 hours later. You could easily see this by eating chips. The second thing is that your profile seems (from the picture) a little on the higher side on average, this could suggest that you are not inyecting enough lantus. Discuss this with your doctor, but when I have had this I have increased my basal insulin by 1 unit.

 

[Ipodlistener]

Is it possible to have your cooked (main meal) at lunchtime. Then have a sandwich for your evening meal. As the whole disease is an experiment. How about adjusting your bolus each time you have that meal by a unit. Don't over do it worst case you have to eat more. I'm someone who trys to do as little as possible in the bolus working window. Good luck. But my biggest step was getting my basal rate right for me.

 

[Smallsdiabetes]

I have already posted this message in the type 2 diabetic forum but someone suggested posting it here to see if it has anything to do with my insulin timings? The response on the other forum was to do with Dawn Phenomenon.
I’m on basal Bolus and inject my Lantus around 9.30pm each night, dinner is around 7pm, so Novorapid is injected around 6.30pm and I try and low carb.
When I can afford to buy the Freestyle Libre, an interesting phenomenon keeps cropping up but I don’t know why!
I go to bed usually around 10pm and my sugars are between 7 to 8, but from around 1am when I am asleep they start rising to peak at at 3am, then drop back down till around 6am then start rising again till I get up at around 7.30 and it’s 9 something!!
Should I just not bother eating any dinner?
Thanks for any suggestions

View attachment 68762

Last meal of the day ideally should have fibre in it like oats or nuts to slow absorption and any insulin spike. When you fall asleep your body releases Melatonin to help you rest and sleep hence from your profile your sugars drop nearer to 3 as we burn calories overnight. At 3 ish this may be a level for your body that kicks in the stress hormone Cortisol to naturally recover the situation in a less controlled way. For me once cortisol kicks in my morning spike is well over 10-12.