When I have a migraine, it begins with strange lights in my eyes. My vision diminishes as the lights increase. I must get to a dark room and go to sleep when this happens. This symptom is accompanied by body aches and nausea, but not always a headache. Two to three hours after the symptoms begin, I vomit. The vomiting relieves me of all the other symptoms aside from this strange feeling similar to being hungover, which lasts for the next 24 hours. Fortunately, it only happens about once every two years. I just had one last Thursday.