I used to get aura-style migraines. After following a yeast and wheat free diet my migraines went away. I started on the diet based on a small study as a way to suppress hidradenitis suppurativa symptoms. I’ve now been on this diet for 7 years and have not had a single migraine. It’s clear to me that the cause of migraines are inflammation, in my case caused by innate immunity (with a failure to down regulate) to fungi and 1,3, 1,6 beta glucans.