Q. Why does my blood sugar level go up even without doing anything?

Answered by
Dr. Zulfiqar Ahmed
and medically reviewed by Dr. Sneha Kannan
This is a premium question & answer published on May 07, 2020 and last reviewed on: May 19, 2020
I have been a diabetic for about 20 years. My recent A1c is 6.4.
From last few days, I have been noticing that my fasting sugar readings are really high like 140-180. There have been no changes in the diet. Interestingly enough, within 1-2 hours it goes up by another 20 points without doing anything. Another strange thing is before I go to bed, it is in the range of 110-130, but in the morning it is always > 140. Please help me understand this strange phenomen. I am taking 1000mcg Metformin twice a day.  

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Dr. Zulfiqar Ahmed

Diabetology Endocrinology

Hi Thanks for your query It’s good to see ur sugars are good with HBA1c 6.4. Blood sugars go up and down not only with meals but there are many other factors associated as well like other Harmon levels in the body. For example if ur stressed mentally or excited ur cortisol and catecholamines also increase and thus may lead to increase sugar levels as well Same way if u will do exercise it will decrease ur sugar as well as use of alcohol. May be ur eating habits didn’t change much but other factors have something to do with these levels. Sleep is also important. Along with medications I always advise for intermittent fasting and low carbohydrates with least grains. Exercise even if it’s just walking 45 minutes daily is beneficial Thanks

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