That is cold Katie when even a Christmas cactus gets frostbite inside. Do you have a woodstove or an oil furnace that you can use to heat your home? One electric heater certainly is not enough to warm even a small room. Two more months of cold with not much heat is terrible. Put on lots of layers of clothing at least. It helps somewhat and a nice electric blanket might be nice too. Another thing that would keep you toasty warm at night would be a feather filled duvet. Its warmth may even help you with your leg pain. Here I always believed Mexico was a hot country, boy was I wrong.