A: Diabetics often also have a linked condition known as atherosclerosis, in which blood vessel walls thicken, making it harder to move blood around, especially to faraway body parts like the hands and feet. If the blood supply to your hands and feet are not enough, you may feel tingling or stinging (like when your arm is asleep). Hands are less at risk than feet, because they are usually in sight. In extreme cases, you may not be able to feel when your foot is injured, like with a blister, cut, or stone caught in your shoe. Ways to prevent damage: 1. Wear comfortable shoes. 2. Diabetics tend to have drier foot skin and calluses, so rub your feet with a pumice stone after showering and put lotion on your feet (but not between toes). 3. Do not smoke. Smoking speeds up the process of blood vessel hardening, and will make your condition worse.