You can do it NannySandy One day at a time. Start small and work up to more. Like Carol says she could barely make a block now 25 miles. Good for you Carol. I was 220 and am now 177 (after gaining a few over Christmas) I walk 2 miles a day and do 30 minites on the elliptical. I was huffing after a block at first and didn't start on the elliptical until Nov. 1. I started in May 2010.
You can do it. You go Girl.