... last night I had a minor concussion.
We were sledding at rock canyon when we (duh) decided we needed a jump. So we made one, 10 feet or so short of the sidewalk. Which was all fine and good until I went down, face first, from the top of the hill and landed with my head missing the sled and hitting the sidewalk. Cool! Anyway it hurt, but I never lost consciousness, no biggie. Until I started seeing little lights. And on the way home on 9th (which is a straight road) I suddenly became completely disoriented and had to pull over and let my friend drive.
I'm publishing this small tale of idiocy only because it was an incredibly interesting experience. Later, I noticed that I couldn't read words on my computer or my phone for several hours. I had trouble recognizing people's faces. And the whole time, I knew exactly what was happening, but couldn't do anything about it. Being sane and conscious while your brain goes crazy has to be one of the most bizarre experiences I've ever had. But if you want to experience it, I recommend illegal drugs instead of bashing your head in.
And don't worry, the symptoms were gone in a couple hours and I was woken up every hour last night to make sure I wasn't in a coma. Not fun.