I'm sorry you are going through this. I have had extreme migraines, coupled with ocular migraines where I would start seeing colored artifacts or blurry areas for an hour or two.

They have almost disappeared since I switched to sleeping in a really hard Japanese futon and I switched to an active chair at work (search for Peter Opsvik).

It turns out my migraines seem to originate from extreme muscular tension in my left neck-arm joint.