Why Are My Blood Sugar Levels High?

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Are high blood sugar levels a characteristic of diabetes type 2? This happens because your insulin is not allowing glucose to enter your cells and then there is too much sugar in your blood. Remember back to when you were first diagnosed you:

  • felt really tired. When you first woke in the morning and also through out the day, you felt fatigued. This is because your body couldn’t use your blood sugars for energy.
  • had blurred vision
  • felt dehydrated and thirsty due to losing a large amount of water through your kidneys
  • were always feeling hungry
  • had difficulty maintaining concentration for too long
  • urinated frequently because your kidneys were responding to your high blood sugars and were trying to flush out the extra sugar
  • felt irritable and short tempered

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Your high fasting blood sugars are what alerted your health care provider to the diagnosis of type 2 diabetes

You have been following a healthy food plan, exercising, taking your medications as prescribed, and you found your blood sugar levels were back to normal for a while. There’s no need to be alarmed if your levels are high once in a while but if this continues you will need to check with your health care provider. Any changes to your health care plan can cause these levels to increase again.

What to do:


  • did you miss several doses or not take your insulin-stimulating medications
  • check the expiry date on the vial. It is often advised to dispose of an opened vial after one month
  • check you have been taking the correct amount
  • the dose may need to be adjusted

Food Plan:

  • have you been making adjustments to your diet
  • eating more carbohydrates
  • eating larger amounts of food generally


  • has your weight changed


  • check your blood sugar level before exercising
  • if the level is already high, exercise will send your blood sugars higher
  • have you stopped focused exercise


  • have you contacted your health care provider
  • the insulin dose may need to be adjusted while you are ill


  • if you have added other medications to your list, talk with the health care provider who is handling your diabetes and check these medications are compatible with your insulin
  • have you added any supplements

The signs of high blood sugar levels are the same as when you were first diagnosed with type 2 diabetes and if allowed to continue they may result in:

  • slow healing of cuts and wounds
  • vaginal, skin and gum infections
  • decreased vision
  • nerve damage affecting legs and feet
  • erectile dysfunction

It is important you check your blood sugars on a regular basis as symptoms of hyperglycemia can be very mild and you feel normal.

High blood sugar symptoms can lead to both minor and more serious complications for many people with diabetes.

If you would like to find more information on type 2 diabetes, click here now to to download my free E-book: Answers to Your Questions

Beverleigh Piepers is a registered nurse who would like to help you understand how to live easily and happily with your Type 2 Diabetes.

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