Since the weather has gotten colder my throat and mouth are way more dry. Whenever I breathe through my nose the top of my mouth starts to dry out. I am not sure what to do and this has happened 3 times in 4 weeks so I don't think it is sickness. I wake up and it goes away but sometime it hurts really bad. I know mouth breathing isn't very good either but I am not sure on what to do. Breathing through my nose makes my mouth and throat go super dry and hurt sometimes.