Good question. I was chronic 10 attacks everyday for 5 yrs I started high flow oxygen it worked only I was hitting it all day for relief second five years..before this I tried everything all drugs and the just made it worse with rebound headaches I wanted to die. Then my Wright ballooned then I saw Dr. Berg on u tube on keto diet to lose weight so I gave up sugar possessed foods vegetables oils smoking weed too fasted for 10 days at first then headaches went away!! Doing more research on inflammation and its connections fueled my interest as well as my succes