I have just found this amazing video and decided to post it right away.
I have not yet seen a clearer and more accurate explanation of what a migraine is anywhere on the internet before. I hope you enjoy watching it! many people, particularly those from the older way of looking at migraines, believe that migraine is vascular. This video shows how much it is not albeit you will see that it does connect to the vascular system. The brain has its own vascular system, which is connected to the heart obviously. What this means is that the brain can experience things the heart does not–there is the blood-brain barrier. But this is not the case in the other direction. If one has high blood pressure, the pressure with which the blood will flow to the brain will be high as well, potentially causing trouble. So while migraines are not vascular themselves, they are connected to those organs that are. Still, migraines are neurological and not vascular. That is a huge difference.
The original blog post on migraine-book.com can be found by clicking on this link.