Thank you for your question.
Nausea, weakness, and blurred vision could be associated with impaired glucose tolerance and diabetes. However, further testing is required in order to diagnose you diabetes. Please go to your doctor to conduct a blood testing to determine if you are indeed suffering from complications of diabetes. If diagnosed with diabetes, you will be prescribed diet modification to reduced the amount of sugar you are ingesting as well as medication or insulin to assist in regulating your blood sugar levels.
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