Swollen face, hands, feet and ankles

Swelling in these body parts suggest that your kidneys aren't functioning optimally. Other symptoms of kidneys not working well include general weakness, upset stomach, sleep problems and lack of focus. When your kidneys don't work optimally, it could be life-threatening because they don't facilitate waste removal from your system.

Pain in the arm, jaw or chest

These symptoms could suggest an imminent heart attack. Diabetes can cause your blood vessels to deteriorate and allow plaque to build up within your arteries. Plaque can also damage your heart muscle, causing a heart attack. If the plaque reaches your brain, it can cause stroke.

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