The warning signs of diabetes will often sneak up on a person, and because early detection is critical for controlling the disease, getting checked regularly is highly encouraged. Two common symptoms of diabetes are fatigue and feeling thirsty more often than usual, but these seemingly harmless symptoms can be a precursor to a life changing disease. For more information about warning signs of diabetes visit Diabetes.org, and learn about the National Indian Health Board's Special Diabetes Program for Indians at NIHB.org.