I don't get migraines (until now??) but I experienced a "visual disturbance" during my drive into work this morning. Started as a snall burry slightly flashy blob near to the focus of my vision, seemed to be in right eye, but when I closed that eye and looked through the left it was still there.
During the hours drive it slowly changed into a sort of crescent shape and 'drifted' towards the periphary of my vision while expanding...
Does that make any sense at all!!?? Was that an 'aura' an ddoes it mean I'm going to have a crippling headache later?