best diabetic clinics near me Symptoms can come on slowly. They may include: More thirst. When sugar builds up in your blood, your kidneys work overtime to get rid of it. This pulls fluids from your tissues and makes you dehydrated, so you feel thirsty. More hunger. Because diabetes can stop glucose from getting to your cells, you feel hungry, even after you’ve eaten. Peeing often. You’ll pee more because your kidneys are working to get rid of extra sugar in your system. Dry mouth. Dehydration and peeing a lot can drain moisture from your mouth as well. Weight loss without trying. When you lose sugar from peeing a lot, you lose calories, too. You might lose weight even though you’re eating as usual. Fatigue. When your body can’t use energy from food, you could feel weak and tired. Dehydration can make you feel this way, too. Blurry vision. High blood sugar can make you have trouble focusing. Headaches. High blood sugar levels can cause your head to hurt. Loss of consciousness. After you exercise, skip a meal, or take too much medication, your blood sugar could go too low, and you could pass out. Infections or sores that don’t heal. High blood sugar can slow blood flow and make it harder for your body to heal. Tingling hands and feet. Type 2 diabetes can affect nerves in your hands and feet.