Talking about two different things here...one being tired from the work out of getting to/from the course...the other being caught out by a sudden cold front without the right clothing on.
"I'm in less than top shape, but somehow managed it 5 days in a row"
"were so cold and nearing hypothermia"
Make your mind up! If you were near hypothermia without any support boat you very nearly didn't manage did you!
