Had that twice once around spinal cord looking for disc problems not to bad couldn’t lift head for 12 hr or a blinding pain would hit. 2 Nd was for an anurism behind my left eye. They put the dye thru a fine tube that they started in the artery in my inner thigh and worked it up into my neck when they put the dye in it got really cold then the tec hit the switch for the X-ray and my brains melted and ran out my ears. Found anurism sawed hole in my head fixed it and put me back together. Everything still works amazing. So now you know why I am the way I am what’s your excuse