do any of these corresponde to your experience?
http://assets.nydailynews.com/polopoly_fs/1.2591623.1460034941!/img/httpImage/image.jpg_gen/derivatives/article_750/migraine8f-5-web.jpg https://s-media-cache-ak0.pinimg.com/736x/e3/cf/44/e3cf4450392fc489fcf1a435c1001430.jpg http://cdn-media-4.lifehack.org/wp-content/files/2016/04/19081734/auras1.jpg https://s-media-cache-ak0.pinimg.com/236x/94/bd/f1/94bdf14dc0af7e4d7d4d09fe1d222602.jpg