Day 1 week 1. Feet hurt a bit, and half an hour seemed a long time (I've done a fair bit of walking before, but not running) - but very satisfying to manage it all.
I really need to be more active, as I've put on a bit of weight since being diagnosed coeliac, and discovering lots of tasty sweet things I can eat. I hardly used to eat sweet things at all, and now I'm having a couple most days... I probably need to limit them, for dental health too, but at the moment they are compensation for not being able to eat bread. I love bread and do rather miss it. Gluten-free bread is just not quite the same!
On the other hand, I am so much healthier since I cut out gluten, so it is worth it.