It’s also a symptom of anemia. My hands and feet have been noticeably colder lately, missed 2 periods, and I started having chest pain. I don’t have insurance and am a nurse so I tried figuring it out myself. I started an organic multi vitamin w/iron, gave myself a vitamin b12 shot, had a little red meat and within minutes the chest pain was gone, my hands and feet started warming up and the next day my period came. There was some article on here about anemia causing candida or candida causing anemia, can’t remember but Able recommended lactoferrin instead of iron and I haven’t had any problems since using it.