Do you have any discoloration of the hands or feet? May want to look up "Raynaud's" syndrome/phenomenon on the web.
do you have any other symptoms? Are you tired, fatigued, gaining weight, dry skins, eyee, feeling blah.... to name a few...if so you may want to have your thyroid checked....if not (not sure here) there are syndromes of cold hand and feet...think I read it somewhere....