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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Sugar Fluctuations In My Blood Dizziness And Nausea?

Hello, Today I had a post-prandial (1hour) blood sugar of 442, which dropped to 295 10 minutes later. Two hours later my blood sugar was 107. I have not been diagnosed with diabetes (I have access to glucometers at work). I ve been experiencing lethargy, dizziness when standing too long, and nausea (usually in the morning or in the evening if I haven t eaten yet). I am of normal weight (5 11, 140lb female). No recent weight loss. I do extreme thirst, however, I don t always drink enough. What is going on?
Tue, 11 Mar 2014
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Diabetologist,  's  Response
Hi, welcome to our site. I am Dr Saumya Mittal.

Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query

To answer your query in details. The blood sugar always rises in every person when you have had a meal. Its a normal response. As the body processes the food, the sugars start to get normalized.

The peak of the sugar also depends on what you have eaten. If you have had something sweet or say a juice, the rise of sugars is higher. On the other hand, if your diet has had high fiber diet, the rise of sugar will be more constant.

And of course, as you have noted, the time after meal is essential as that also affects the sugar tests. Ideally, the only significant sugar in your case is the one after 2 hours- 107. And that is normal. The other are random sugars and do not diagnose you with anything.

I suggest you have a formal test of FBS, PPBS and HbA1C.

I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck.

I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you.

Please do understand that some details could be extracted from a detailed history and examination.

Looking forward to your return query with the details asked so that I can help you further. Please feel free to ask another query. Would be glad to help you.
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What Causes Sugar Fluctuations In My Blood Dizziness And Nausea?

Hi, welcome to our site. I am Dr Saumya Mittal. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query To answer your query in details. The blood sugar always rises in every person when you have had a meal. Its a normal response. As the body processes the food, the sugars start to get normalized. The peak of the sugar also depends on what you have eaten. If you have had something sweet or say a juice, the rise of sugars is higher. On the other hand, if your diet has had high fiber diet, the rise of sugar will be more constant. And of course, as you have noted, the time after meal is essential as that also affects the sugar tests. Ideally, the only significant sugar in your case is the one after 2 hours- 107. And that is normal. The other are random sugars and do not diagnose you with anything. I suggest you have a formal test of FBS, PPBS and HbA1C. I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Looking forward to your return query with the details asked so that I can help you further. Please feel free to ask another query. Would be glad to help you. (If the answer has helped you, please indicate this)