Blurred vision, increased urge to urinate, feeling hungry, extreme thirst, and a feeling that your skin is itchy and dry are warning signs that you may be in the early stages of type 2 diabetes. The best way to determine if you have type 1 diabetes is to take a blood test. There are different methods, such as an A1C test, a random blood sugar test, or a fasting blood sugar test. All are effective, and your doctor can help you determine what's right for you.
If you are diagnosed with diabetes, your doctor may request additional tests to check for the presence of common antibodies in type 1 diabetes using a test called C-peptide, which measures the amount of insulin produced when tested simultaneously with fasting glucose. These tests can help distinguish between type 1 diabetes and type 2 diabetes when the diagnosis is uncertain.