Interesting.....the last MRI I had done of my brain...(I have continual migraine headaches that don't ever go away even after having neck fusion which they thought would solve the problem because of the mess my neck was in from a horse accident back in my college days around 1972)...neck fusion was done in 1999)......anyway...the last MRI showed up some white spots......& that pain specialist said that those white spots showed that I had bad migraine problems.

I have had a few mild concussions with no black-outs from them. One was as a child on the playground when kid ran into me (neither of us were looking). The worst one but still didn't black out was when I was playing racquetball. My foot stuck to the floor & my head hit the wall (I used to play that game really hard & with A player guys).....but none of those accidents would be anything that would have caused the white spots in the location where they are....at the base of the head where my migraines come from......interesting that they tie white spots with concussions or strokes.