I had a similar feinting story.
I was riding prelim in a horse trials in Pen. I had a bad fall, and back then, you were allowed to remount and continue on course. I was very determined to finish. I had no more faults and finished the course. As soon as I went through the finish flags and slowed down, I feinted dead away. Yup, major concussion with three days of major puking.
I love the story of the barrel horse kicking the barrel back upright. I think that horse is worth a million bucks (hmm maybe I should say dollars?). I think you may have protested the penalty.