.. I think I must have!
Just had my first run since Sunday, and while I've now completed week 3, I could definitely feel the affects of a few days of my Mum's home baking and incessant cups of tea - as unfortunately could the scales ;-(
Don't think I'm the only one though - I very nearly trod on a rather fat sparrow who was sat on the path and almost didn't get out of the way.
Having peeked at week 4 I think it's about to get a bit harder ......