I was driving to a local place for lunch one day when I started seeing lights in my eyes. I got to the restaurant, it was rather dark inside. It got so bad I could hardly see. Scared the crap outta me. It finally went away on its own. Classic scintillation scotoma, I guess, ultimately led to migraine headaches. This was twenty some odd years ago. I got horrible migraines for a few years, then they just... stopped. I was under a lot of stress at work at the time. The source of the stress went away (boss from hell got fired), and the headaches stopped. I developed a blinding headache a few weeks ago, was sensitive to light and sound, and felt awful; it lasted a couple of days. Migraine coming back? I haven't felt stressed, though I had been working long hours for some time. I sure hope they don't come back, I need that like a hole in the head, no pun intended.