Pain in my head whenever there is a humidity change. Can someone help?

Pain meds. There are multiple casual factors that may precipitate the headaches. Low or high barometric pressure could induce the headaches. First i would get a brain MRI and a cat scan sinus survey to rule out sinusitis. If all negative, i would prescribe narcotics, nonsteroidals anti-inflammatory agents, fioricet, and topamax (topiramate).