Hello, Mooz! 27,433 steps??? Four 2-mile walks in one day??? Very impressive, indeed! And great job on incorporating weight training and some ab work -- just a quick heads-up: the most current reports say that crunches, rather than sit-ups, are the safest and most effective exercise for the tummy. The sit-ups apparently don't isolate the muscles as well, and are also potentially harmful to the back. (Not sure if this was just a case of mistaken semantics
but I thought I'd share this info.
Best to you...and keep up the great work!