Frequent urination
Increased thirst
Increased hunger
Dry mouth
Fatigue
Blurred vision
Headache
Nausea
Unexplained weight loss
Slow-healing cuts or sores
Frequent infections
Tingling or numbness in the hands or feet
Blood sugar reading above your target range on a glucose meter or CGM
Seek urgent medical care if you have confusion, vomiting, trouble breathing, or very high blood sugar readings