Right now, I can barely move my upper body, because I decided to visit a grand opening event a couple miles from our house for a Crossfit gym, mainly because the flyer said there’d be BBQ and popsicles.  Like anyone else who’s got a Facebook or Instagram account, I’d heard of it (as in “I was sick of the bragging about one’s workouts and perceived cult membership”).  My lone experience with this form of exercising came in 2007 while deployed to Balad, Iraq.  My shoulders were so badly…