My sister recently awoke to a splitting terrible headache. She said she felt like she got shot or stabbed in the head and thought she was having an aneurysm. One of her eyes was also pulling inward or crossed involuntarily. She went to the e.R. And they said it was just stress, but monitored her overnight (with no tests run) and then sent her home. The headache went away for while. So she tried exercising, but the headache returned when she tried. This seems strange to me, and I can't find any info on severe sudden headache with an eye crossing or pulling in toward the nose. Does anyone have any information on what this could be?