Have you ever had problems explaining exactly what you are suffering when you get a migraine? People just don't seem to get it. Well the Migraine Trust commissioned a number of short videos to try and get the message across. I highly recommend that you pop over to their youtube site to have a look as they are all completely excellent.
http://www.youtube.com/user/TheMigraineTrust?feature=watch
My personal favourite "youtube in pain" as I can really associate with the let down feeling at the end.