Are your hands and feet cold? If so, you may have hypothyroidism -- an underactive, sluggish thyroid. Feeling cold in the hands and/or feet -- or sensitivity to the cold -- is a common complaint in people with hypothyroidism. But proper thyroid treatment usually will resolve the symptoms in most people. If cold hands and/or feet still have you down, you may have a condition known as Raynaud's syndrome. Find out the signs of this condition, and what can be done to help.