Type 1 Diabetes Frequent urination Unusual thirst Extreme hunger Unusual weight loss Extreme fatigue and Irritability Type 2 Diabetes Any of the type 1 symptoms Frequent infections Blurred vision Cuts/bruises that are slow to heal Tingling/numbness in the hands/feet Recurring skin, gum, or bladder infections If you have one or more of these diabetes symptoms, see your doctor right away.
Well, you can just know when you have it. There are symptoms you can look for, like feeling faint, blood sugar is too high or too low, ect. To avoid it, try eating healthier foods. More wheat, water, less sugar, ect.