It feels like a large pressure inside my head, and people have describe that my face changes from bright red to pale white every few seconds when this occurs. When this happens, it lasts for usualy 1 to 2 hours. An
MRI scan I had a while back, not sure how long exactly, showed that I had some sort of blood circulation problems, although I have no further understanding on what this was. I have pretty much no medical knowledge so this confuses me greatly. any help would be greatly appreciated.