You might not! Many people have diabetes but don’t know it because it often has no symptoms. For both type 1 and type 2 diabetes, you may experience symptoms such as hunger, thirst, frequent urination, fatigue, and blurred vision. But the only way you’ll really know is to have your blood sugar tested. Usually, the first test you’ll have is an “hgA1c” test. This test gives an idea of what your blood sugar levels have been for the past 2-3 months. Two tests with levels of 6.5 or higher indicates that you have diabetes, while 5.7 or below is normal. Between 6.5 and 5.7 indicates that you have prediabetes—elevated blood sugar levels that don’t quite rise to a diagnosis of diabetes.