I've had a ten year journey of going from being totally disabled from migraines almost never having one. Here is my abridged advice:
First rule out anything the doctors can do for you. Be tested for:
-- MRI for brain tumor or neck problems (even if you've never had neck pain.)
-- Food allergies
-- Obvious chemical imbalances
If that doesn't yield anything, I suggest you go to a holistic M.D. My holistic doc found things no one had EVER thought to check for, and all the test were covered by Medicare and Medicaid.
After that, you're left with looking into diet changes, supplements, etc. (After ruling out the above, this is where I, personally, would start but I know not everyone trusts the alterntive route.0
Don't despair; don't give up!!! I know it's horrible to go through this but many have found the cure that works for them, including me!
I am now writing a book on what I've learned on my journey with migraines and want to be sure that I have addressed most peoples' greatest concerns. If you (and other readers) have a few minutes, I would be very grateful if you would be so kind as to fill out my very brief survey at http://migrainesurvey.blogspot.com.
Blessings, and good luck to you.