What Causes Recurring Hot And Cold Flashes With Headaches?

hello. Since Saturday I keep getting the chills and then I get hot also have a headach. Goes away when I take I bupr[en. I don t feel sick. One other thing that is happening. I am having back problems and have n off of work and going to the Chiropracter.. My daugther has the symtoms... the chills and sweating.