Congratulations! That's quite an accomplishment, I'm not a runner, but a cyclist, but I am thinking I may like to start doing some 5k runs. So far all I've done is bought a new pair of running shoes. I suppose I need to put them on and hit the road. I've been riding so much I haven't been motivated yet. I was a couch potato (and a smoker) too till a few years ago, and have also lost some weight over the last few years. I feel so much better and I love the sense of accomplishment I get from finishing a tough or long ride. Again, Congratulations!