Saturday I returned to the gym, and walked 1.1 mi. on the treadmill. This treadmill is a pretty nifty machine; I still don't know all the features. For instance, it flashes numbers in mets and watts. What in the world do those numbers mean?! So far, I've manually set my workouts, but hope, in time, to try one of the machine's workouts and see if I can handle it.
Meanwhile, I've signed up for a consultation with one of the personal trainers at the gym. This first visit is free, so I don't have anything to lose.