WTF, a migraine symptom returned just now but without agony. whew

They begin at puberty and are suppose to abate at man/menopause.
The symptom is a thin moving wriggling bright rainbow lightning bolt that shimmers in my field of vision no matter which eye I close. It has drifted to a right side peripheral position so it does not block the sweet spot. I would encourage future research to focus on sex hormone - migraine connections. Poof, it just disappeared. The lightning bolt, not the sex. :^/