I have had this problem for awhile & it seems to come and go & I have no idea what causes it. The last few nights my feet would just feel so cold all the time. (It's not only my feet sometimes I get these chills all over but my feet are the main concern) It is not that it's cold in the house (I wake up soaking wet and have to change my clothes because I'm so hot) I wear double socks and it still doesn't help. Taking a hot bath before bed seems to work but I'm not sure if this has to do with some kind of deficiency or what? Not enough Iron? etc? Any help would be GrEatly Appreciated!