Ask as many questions as you like, there are lots of very caring and very knowledgable people at this forum that truly understand excactly what you are going through, if you would like to walk for exercise i suggest that walking up and down a lane of your local swimming pool is good cardio excercise, non weight bearing and doesn't hurt your feet at all, when i first went to do just that, i was really surprized by the amount of people doing as above, for lots of differant medical problems, i found that going to the pool early when it opens is better.