I didn’t track down the sleep issue, but your fat day was April 22, 2009, and the day your heart rate skyrocketed was December 19, 2006.
Tracked down some more: Some serious hibernation going on 1/30/2010 and 1/11/09, and also another high G day on 1/11/09. A person could edit those things to get a better archive, or keep them a souvenirs.
My favorite bit of PG career stats is that you are such a good orienteer that you managed to find 86 controls while trail running.
I believe the appropriate phrase here is -- Garbage in, garbage out. :-)
I had one of these, where an old pair of running shoes somehow accumulated 10x the typical amount of mileage (>3000, IIRC). Turns out I had mislogged some run as 1000 miles instead of 10 miles, or something like that.