Thanks... I'm MOSTLY ok. It was a dumb mistake on my part. I had a rough day at work, got home, jumped on the bike to release some stress without "fueling up". I bonked hard. I was feeling really shaky, and thought: "I'd better sit down", so I turned into an office park and that's all I remember. A lady saw me run straight into a brick wall, then hit the street hard. Bumps, scrapes, bruises, and a bad concussion. The really scary part is bits of memory loss.