Hi I also get migraines. RSD complicated migraines for me. A nerve would fire like touching a raw nerve in your tooth. This would fire every few seconds and go on for weeks. The only thing I could do was lie still and my specialist advised me to do just that. Nothing else helped. So you can see I need to find something to preven migraines as I just lost weeks of my life each time.
One of my specialists suggested I look up the studies done on vitamin B2 to prevent migraine. The double blind studies used 400mg of B2 in divided doses each day. I do not need that much. I take 150mg and it does prevent migraines. I still get occasional breakthrough migraines but these are less severe. If I don't take the B2 for 48 hours I get another migraine.

This might be worth looking into. I know there are other preventative medications including Sandomigraine and Inderal. I was taking these but am no longer able because of side effects.

You can find more about this by googling "B2 migraine.

jeisea
http://www.crps-rsd-a-better-life.blogspot.com