I haven't yet, though it reamins an option. As luck would have it, just as I was about to investigate headache clinics, the migraines backed off. I went from having one virtually every day, to 2-3 a week and much less severe. That's where I am right now, not having fun but it's manageable.

I'm half Japanese, also. Other half is Chinese. My screen name is the Chinese spelling of a Japanese given name.