Hi Helen....
I suffered with migraine type headaches from the age of 19. I used to tell the doctor's about the headaches, but never went while I was having one. I let that go on for some 25 years.
It was my sane sister who called me an idiot and told me to go to the emergency room while this was happening, so someone could see how bad they were. I took her advice.
I didn't know if anyone else had the same types of things happening to them, as me. I always had the pain on the same side, the right. But, the opposite side would droop. What surprised me was my elevated blood pressure. 176/117. The nurse looked a little surprised and said it was probably due to pain.
They gave me morphine, aahhh. No more pain!

They never did a CT scan. After that, I monitored my pressure. It stayed high. I had the CVA.
I didn't have a headache then. Weird. But, I had been having vertigo spells and chills in my head...numbing of my chin area.