Hi, just a thought .. when someone who has no history of headaches has a long-term headache, sinus pops into my mind. I had this happen years ago. A bad sinus infection
can really create terrible headaches, i saw an allergist and got a Dose-pak (7 days of a type of prednisone). It can really knock out a sinus problem. also, a couple of months ago (I have had migraines bout 2-3 years) my neurologist suggested the Dose-pak to "break the cycle"
It did the trick, i was migraine free for a couple of weeks afer the dosepack after having
about a 10-day migraine and going to the ER, when even morphine didnt help.
good luck to all.