The low blood sugar hadn’t rooted firmly enough in my brain yet, but I knew something was wrong.  My feet were heavy against the treadmill belt, and I kept rewinding the show I was watching because the dialog wasn’t making much sense to me. BEEEEP!  BEEEEP!  BEEEEEEEP! hollered my phone (aka surrogate Dexcom receiver) from the cupholder of the treadmill….