Blurred vision can happen when blood sugar changes affect fluid balance in the eye. Some people notice that vision becomes unclear at night, when reading, or in the morning.
The American Diabetes Association includes blurry vision among diabetes warning signs, and Mayo Clinic also lists blurred vision as a symptom of hyperglycemia.
Sudden or severe vision changes should be checked urgently.
7. Waking Up Tired Even After Sleeping
If you sleep for many hours but still wake up drained, heavy, foggy, or weak, blood sugar imbalance may be one possible
