I get migranes now and than, but when I started using my Cpap I had one for 5 days-this has never happened before. I stopped taking pills after the 5th pill gave no results. I stopped the cpap and am fine. Afriend suggested that the pressure setting was to high causing to much pressure on the sinus cavity (which is another reason for some migranes) I cant figure out how to change the pressure and a trip to the clinic is way to far down the road!!