What is the physiological process that causes migraine?
I ask because over the years my doctors have given different explanations - (1) blood vessels swelling in the brain (2) or a tiny hole in the heart or (3) mini strokes or (4) something similar to epileptic seizures. Seriously, is this known or are we just guessing?
I saw a documentary that illustrasted the role of serotonin in migraine. It was on NHK World, but I fail to find a link.
Here is info from John Hopkins University.
Medical science doesn't know the cause yet - there have been theories but nothing substantial. That's why there's a lot of stigma around migraines still, because you can't look at something and diagnose migraine - it's an illness of exclusion.
