Below is a listing of medical resources for migraine sufferers. In my experience I have found these resources to be very informative and beneficial.
Please click on the links below:
Migraines: Simple steps to head off the pain - MayoClinic.com
Migraine Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
Ocular migraine: What causes it? - MayoClinic.com
Migraine: Are they triggered by weather changes? - MayoClinic.com
Migraine with aura - MayoClinic.com