My mother is 88, weighs about 85 lbs and has PAD in legs. She has recently been complaining of severe pain in hands and upper arms and bulging veins each morning. It is enough to wake her up each day. She is often extremely cold and tired. Her hands change color when they get cold. Our doctor has no clue and neither does her vascular specialist who placed a stent in her left leg about a year and a half ago. Should we see a heart specialist maybe?