Hi. I'm A 72 Yr Old Woman Who Has Had

Hi. I'm a 72 yr old woman who has had increasing coldness in my extremities while asleep for a couple of decades now. This winter, I have had terrible leg cramps at night as well. I have to sleep with several layers of pajamas, wear socks on my feet and also cover my hands completely. My face also feels cold -- even during the day sometimes. I've been drinking distilled water for a couple of decades. I suspect that I haven't been getting my minerals. Can you help me? This is becoming almost unbearable!