question: I get migraines from pressure changes (I live in Calgary which is close to the Rockies) I have been getting nosebleeds and vomiting today. I have been on many different migraine medications but the side effects are bad. I have also had acupuncture, chiropractic care and deep tissue massages. I cant control them and miss lots of work. Sometimes they last 2-3 days. I dont know what to do anymore.