4 Sneaky Signs Your Blood Sugar is Out of Control

Unless, you routinely measure your blood sugar levels at home, you may not even realize when your blood sugar is out of control. But there are several sneaky signs of high blood sugar and low blood sugar. 

high blood sugar out of control

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Because the warning signs that your blood sugar is out of control are not always obvious, I encourage my patients with type 1 diabetes and most of my patients with type 2 diabetes to check their numbers on some sort of schedule.

And self-monitoring your blood sugar levels empowers you with knowledge. You get tons of really important feedback about how food, exercise, medications and sleep affect your blood sugar numbers. This helps you to make changes based on real information and not on guesses. I listed several things that cause high blood sugar or low blood sugar in a previous post.

Diabetes Blood Sugar

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Are you familiar with these lesser known symptoms of high and low blood sugar?

4 Sneaky Signs that Your Blood Sugar is Out of Control

  1. You thrash around at night. Bad dreams and restless nights might actually be a sign that your blood sugar has dropped too low. If you take insulin or another medication that has hypoglycemia (low blood sugar) as a side effect, a bad night in bed isn’t something to ignore. If your partner complains that you seemed to fight with your pillow, you need to check your blood sugar during the night. You may need a change in your medication dose or timing. Hypoglycemia isn’t something to ignore. Speak to your healthcare team right away.
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  1. You’re exhausted. I am amazed that so many people walk around all day, every day with some level of fatigue that they accept as normal. So often, clients say something like “Wow, I never knew how lousy I felt until I started to feel better.” Of course, there are plenty of other reasons besides chronically high or up and down blood sugar levels that might have you dragging. None of them should be acceptable, so get to the bottom of it. 
    Nightmares and fatigue are signals that your blood sugar might be out of control.Click To Tweet
  2. Your vision is blurry. High blood sugar might affect your eyes. If blood sugar levels stay high for a few days, fluid can seep into the lens of your eyes, causing them to swell and temporarily blur your vision. However, chronically high blood sugar levels can cause permanent damage to your eyes. For other reasons, blurry vision might also be a sign of low blood sugar.
  3. You can’t get enough to drink and you urinate a lot. Being extra thirsty and frequently trekking to the bathroom are common signs of diabetes and high blood sugar. When your blood sugar level climbs too high, some of the extra glucose is flushed out by the kidneys. All that extra urinating makes you extra thirsty. If you don’t drink enough, you can also become dehydrated.

These are just a few sneaky signs and symptoms of low or high blood sugar. If one of your diabetes medications can cause you to have hypoglycemia, you must learn all the signs and symptoms of hypoglycemia and the proper treatment.

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Jill Weisenberger

I'm Jill, and I believe simple changes in your mindset and health habits can bring life-changing rewards. And I don't believe in willpower. It's waaaay overrated. As a food-loving registered dietitian nutritionist, certified diabetes care and education specialist and certified health and wellness coach, I've helped thousands of people solve their food and nutrition problems. If you're looking for a better way to master this whole healthy eating/healthy living thing or if you're trying to prevent or manage diabetes or heart problems, you'll find plenty of resources right here.

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1 Comment

  1. Amy Ryan on August 9, 2018 at 10:45 am

    “And self-monitoring your blood sugar levels empowers you with knowledge. You get tons of really important feedback about how food, exercise, medications and sleep affect your blood sugar numbers. This helps you to make changes based on real information and not on guesses.”

    This is so true! I’m pre-diabetic, and monitoring my blood sugar levels has been critical for getting my A1C back in normal range. I’ve been stunned at the number of times that I “feel fine” but my blood sugar has been too high, or higher than I’d like it to be. On the other hand, when the numbers are consistently in range, it reassures me that I’m on the right track with my diet and exercise plan!

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Hi there! I'm Jill, a nutrition & diabetes expert and the author of 4 books.

Jill Weisenberger

I believe simple changes in health habits can bring you life-changing rewards.

And I believe willpower is way overrated.

Right here is where you can discover the mindset and habits to stick with healthy lifestyle choices most of the time - and drop the guilt when you don't.

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