Lately, you pee a lot. You always feel thirsty and you always feel hungry. You always feel tired. Your vision blurs most of the time. Your wounds heal longer that it used to. If these things are happening to you, now is the time to worry. You might have diabetes. Diabetes is a disease characterized by high level of blood sugar. This is due to faulty insulin production, insulin action, or both. Diabetes can lead to serious complications then eventually to premature death if not controlled corre.