What Causes Low Blood Sugar Readings?
Normal blood sugar levels range between 70 to 110 mg/dL, says MayoClinic.com. Although diabetics have high blood sugar, called hyperglycemia, side effects of their treatment may also cause hypoglycemia, or low blood sugar. A person with low blood sugar–below 70 mg/dL–may experience cold sweats, blurred vision, headache, irritability, fatigue, confusion, rapid pulse or convulsions, notes MedlinePlus from the National Institutes of Health. Hypoglycemia may occur for a variety of reasons but is not common among non-diabetics.