After completing the C25K I couldn't imagine ever managing 10 K, but I kept on running, although in my head I'm still not a runner.
But, the distance and time I could run for slowly crept up. About 1 month ago, on a beautiful day, I thought I could run forever, and I ran 11.5 km.
It seemed like a fluke. But, I've done it four times now!
So, thank you to this wonderful community of non-judgemental runners offering advice and support. It is an invaluable, gentle motivator.