I was diagnosed by. neuro as having vasovagal syncope triggered by migraine. They are infrequent episodes and, can be up to a year apart. My BP has been 68/45 Maybe lower I don’t know. I end up on the floor and can’t get up dor 20 minutes to an hour afterwards. It takes an entire day to recover. I have no head pain. I have never heard of a migraine causing your blood pressure to crash. I do not normally even have low BP. Has anyone heard of this?