Well, thanks to davelinks and others I think I have got my mojo back! Went out this afternoon, nice mild weather, did my customary canal run but added a bit on as I was listening to the Stamina podcast and just felt good. When I got home I mapped it and found I ran 4.2k. If I add the warm up and cool down walks then that was 5k. And I also didn't get the pain at the top of my right thigh at the back (almost the buttock) that I've been experiencing. Does anyone else get that? I've been wondering if it's piriformis pain. Pilates seems to help it.