Type II diabetes is a chronic condition where the body becomes resistant to insulin or doesn't produce enough insulin. Over time, uncontrolled diabetes can damage many organs and tissues in the body. Symptoms of type II diabetes may include increased thirst and urination, fatigue, and blurred vision. Complications from long-term high blood sugar levels can include heart disease, nerve damage, kidney disease, and vision loss. Lifestyle changes such as diet, exercise, weight control and stress management are important for managing the disease and preventing complications.