You do NOT want to feel pain while using the Kegelmaster. There is a difference between the 'tiredness' of working out the muscles and pain. Lower the settings (like you did) and start with less, I would expect you would feel some 'fullness' and tightening, but not pain severe enough to make you 'ouchy'
I agree with the NO Aerobics (You don't need the bouncing around while trying to get things BACK to where they belong) however i would say slow walking would be ok... just not jogging or anything that jostles you too much.
Sorry I hadn't responded, i was out of town and just back in. Please keep us informed of your progress and keep working on keeping surgery free!!!