I have finally completed week 2 after about 4 weeks. I managed week 1 with no problems but half way through week 2 my knees just stopped working and there was no chance I would be running as even walking was a problem and I had to give in and use the lift at work, the first time in about 5 years, as the stairs were just too much for me. But I rested them as much as I could, not sure that 8 hours on my allotment moving my shed was a good idea, but eventually they stopped hurting and in a new pair of trainers I revisited a week one run just to make sure I was ok.
That was over a week ago and I have now finally finished week 2. I start week 3 on Thursday with a run to my mums. My sister is over here from Canada and the last time she saw me, which was only 6 weeks ago on my trip out there, I could not have run even for a minute and would never consider running/walking the 4.5km to mums. So she may get a surprise when I turn up on foot!
Let's just hope somebody can take me home as I think to do it both ways may be a bit too much at the moment, but that does sound like a good challenge for the future!