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night time hypos after exercise?

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ffrrion

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hi guys. please help. im a t1 on levemir twice daily and humalog. ive been on levemir 28 morning and 26 evening for about 15yrs. ive recently changed my lifestyle, im doing exercise in the evenings, eating 3 regular meals instead of more smaller ones, got a libre 2, and stopped drinking. ive managed to get my daytime bms sorted but im majorly struggling at night time. im having 2 or 3 hypos everynight. ive so far reduced my night time levemir to 15 and still having hypos. (note the levemir reduction was definately needed highlighted by my libre because i was always waking up with high bms and feeling exhausted, id had nightmares etc so was likely having nighttime hypos for years) im exhausted. please help any ideas?
 
The obvious reply is to contact your diabetic nurse/clinic. Failing that, I would reduce doses till I no longer went hypo.
 
Are you getting "real" hypos at night or are they compression lows?
CGMs report false lows if you apply pressure to them. For example, when you lie on them as you sleep.

Edited to add: I was advised to reduce my night time basal by 20% when I exercised during the day.
 
Last edited by a moderator:
In Response said:
Are you getting "real" hypos at night or are they compression lows?
CGMs report false lows if you apply pressure to them. For example, when you lie on them as you sleep.

Edited to add: I was advised to reduce my night time basal by 20% when I exercised during the day.
Click to expand...

i had no idea about compression lows. ok so maybe wen i change my sensor put it where i dont sleep on it? its currently on outside of my arm so maybe is compressed.
with the 20% reduction. do you do that on exercise days and have a 20% higherdose on nonexercise days do you mean?that sounds good.
thankyou!
 
Hello @ffrrion Please check any night time CGM lows against a meter for accuracy before making any changes, I wouldn't change basal rates unless I had concrete proof these were genuine night time lows.
 
ffrrion said:
hi guys. please help. im a t1 on levemir twice daily and humalog. ive been on levemir 28 morning and 26 evening for about 15yrs. ive recently changed my lifestyle, im doing exercise in the evenings, eating 3 regular meals instead of more smaller ones, got a libre 2, and stopped drinking. ive managed to get my daytime bms sorted but im majorly struggling at night time. im having 2 or 3 hypos everynight. ive so far reduced my night time levemir to 15 and still having hypos. (note the levemir reduction was definately needed highlighted by my libre because i was always waking up with high bms and feeling exhausted, id had nightmares etc so was likely having nighttime hypos for years) im exhausted. please help any ideas?
Click to expand...
It is great you have started exercise.

As some input from what I have learned and everyone is different

What I need to do is reduce my fast acting Insulin about 30% for moderate exercise at circa 80% of max heart rate and about 45% for hard exercise of 1 hour if eating before exercise. And if I eat after exercise I reduce my fast acting by about 15%. Also I try keep pretty low carb at night if I am exercising at night so even lower amount of fast acting Insulin on board potentially at night.

We need to remember "fast acting " actually hangs around for up to 5 hours yes really effective for 3 to 3.5 hrs. If we have made our body more insulin sensitive with exercise we need to look at adjustments.

Well done on the healthy life change and getting daytime bloods under control.
 
Trevor vP said:
It is great you have started exercise.

As some input from what I have learned and everyone is different

What I need to do is reduce my fast acting Insulin about 30% for moderate exercise at circa 80% of max heart rate and about 45% for hard exercise of 1 hour if eating before exercise. And if I eat after exercise I reduce my fast acting by about 15%. Also I try keep pretty low carb at night if I am exercising at night so even lower amount of fast acting Insulin on board potentially at night.

We need to remember "fast acting " actually hangs around for up to 5 hours yes really effective for 3 to 3.5 hrs. If we have made our body more insulin sensitive with exercise we need to look at adjustments.

Well done on the healthy life change and getting daytime bloods under control.
Click to expand...

Hi there, thanks for your response. I tend to eat after exercise which ends up being quite late (9pm ish) and never considered reducing that fast acting, i will definately give it a goas my libre shows a very sharp drop.

Im definately more sensitive to insulin now like you said, as my night time levemir so far gone from 26 to 7!!!!

Im actually feeling amazing with the exercise, dont want to let the insulin issues put me off.

Thanks for being so supportive! :)
 
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