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High sugar levels after dinner and at bedtime

MikeSA

Member
Messages
14
Type of diabetes
Type 1
Should it be a concern if sugar levels are persistently high after dinner and at bedtime but dropping to normal or acceptable levels mornings before breakfast?

Each morning, before breakfast, my sugar level can range from 4.4 – 7.4. And before dinner, it can be range from 5,2 – 9.4 but sometimes can be around 12.

However, on most days, particularly after dinner and at bedtime, levels can be anything between 3.8 to 16.7. But strangely, by the following morning, before breakfast, the levels have normalised or dropped to acceptable levels.

However, I avoid injecting a further dose of insulin when sugar levels are significantly higher at bedtime as, on a few occasions, it has resulted in hypos and that was most scary. Each time I would wake up, sweating all over and my heart beating rapidly. I then would need to get up, rush to the kitchen and gulp down a handful of raisons, a tablespoon of honey and finish off with a cup of coffee and a slice of toast smeared with peanut butter! And then I would feel fine.

Currently, I have been prescribed both Metformin and 30.70 insulin combo but, on some days, whether I take the Meformin or not, it does not appear to make any difference whatsoever. However, skipping an insulin dose would result in much higher pre-meal levels.

In light of the aforegoing, all comments and views would be appreciated.
 
Currently, I have been prescribed both Metformin and 30.70 insulin combo but, on some days, whether I take the Meformin or not, it does not appear to make any difference whatsoever. However, skipping an insulin dose would result in much higher pre-meal levels.

So you're on mixed insulin? And metformin? I assume the metformin in for insulin resistance? It seems strange to be treating insulin resistance in a type 1 with metformin and mixed insulin, rather than a basal bolus regime that would allow flexible boluses to deal with insulin resistance.

It sounds like your pm dose of 70/30 is or can be resulting in a significant drop in blood sugar overnight, if you're dropping from 16.7 to 4.4. Do you need to go to bed high to avoid hypos overnight? If so your pm dose might need adjusting.

Mixed insulin requires consistent carb intake. Your dose will be designed to deal with a certain amount of carbs through the day. Do you know how many grams of carbs you should be eating with breakfast lunch and dinner and any snacks and are you keeping that consistent every day? If not, that probably explains why you are seeing such a range of results.
 
Hi @MikeSA - sorry to hear about your troubles!

I don't have T1D so only have two general tips for you which might help you glean some insight from your confusion meter readings.

1. Keep a food diary of what you eat, when you eat and tot up the carb, calories and fat totals (sounds annoying, but you can get most of this off the packaging or by googling, visiting DietDoctor.com and so on). Carbs are what you'll need to be aware of, calories just makes good sense and fats affect how fast those carbs hit your BG meter.

2. When you wake up at night, see if you can keep something sweet by your bed so you can access it much quicker and don't have to rush about in a panic. Firstly, it's just safer to not be racing around your house in a potential hypo, but also the more you panic and the longer for, the more adrenaline and cortisol are going to be dumped into your system, both of which will also raise your BG level. If you can access your sugary food faster, you might find that you need much less to rebalance, so be mindful of overcompensating with the glucose!

Sounds like you're in a tailspin at the moment, but don't worry - you're on the right path to figuring it out and you're in the right place to ask for help.

I've got fingers crossed you'll get to the bottom of things soon.

P.S. You're waiting until 2 hours after you've eaten to test your BG, right? I once tested immediately after eating a grapefruit and my level was 22! Two hours later, it was back in my "safe zone" at 6.7 - the timing of your readings is important, and it's super-easy to forget that!
 
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