Did you have any other tests done ?
They never found any reasons for my migraines, they just keep trying new medications. I have tried several with no relief. My doctors said everyone gets migraines just some more then others. One good thing is that there is nothing major wrong, but I know when I get them so bad I can't function at all and I think that something has to wrong like I'm dying.....
Like I have one starting now...........scale 1-10 it's about a 4, but I know it will get worse