When I was in the hospital for a pulmonary embolism I got a real bad head pain. I thought I was having a cerebreal embolism. I got really hot and my body was numb and tingly and I felt dizzy. It happened so fast but I thought I was dying. It was so awful. I felt my body was shutting down and any second my brain would turn off. After a minute I realized I wasn't dying. I realized it was an anxiety attack. But since then I have them often.