> I have very seldom (two or three times a year) migraine, and even more
> seldom another visual symptom: a horizontal zig-zag line of fire which
> begins small and becomes larger. I cannot see anything in the area of that
> zig-zag line, it is blinking and flickering all the time. After covering
> entire visual field, it lasts some minutes before it gradually disappears.
Indicative of the "aura" phase of a migraine. Relatively normal, to my
knowledge. Do the jogging-related symptoms seem to be enhanced at all
around the time you get the migraines?
- Mark Zarella