I'm so glad you made it home ok, that's just scary. Yesterday must have been the day for getting the sense knocked out of you, because I did the same thing. I went down yesterday in a race. My helmet has three cracks in it, so happy it took the brunt of it and not my head. I couldn't remember what happened or answer any of the questions the paramedics asked me so they took me to the hospital to get checked out. Beyond a few road rashes and bruises I'm fine.

I'm not sure about that dragging foot thing you mentioned being good advise but maybe I'm not understanding what you mean by it.