Smallish update -
So far, so good! I've run twice this past week on the treadmill, Wednesday and Friday, for approximately 2 miles each time; I've alternated 1/4 mile of running and walking each time, and so far the only sore part of me has been my quads and hamstrings, but in a good way
I think I'll keep on running every other day until I really get used to it and build up some stamina, and then hopefully move up to the indoor track of the gym.