what are the symptoms of diabetes?
Some people, especially those with prediabetes or type 2 diabetes, may not experience symptoms initially. In type 1 diabetes, symptoms tend to come on quickly and be more severe. Some of the signs and symptoms of type 1 and type 2 diabetes are: 1  Increased thirst. 2  Frequent urination. 3  Extreme hunger. 4  Unexplained weight loss. 5  Presence of ketones in the urine (ketones are a byproduct of the breakdown of muscle and fat that happens when there's not enough available insulin). 6  Fatigue. 7  Irritability.