its really hard!
I thought it would be a breeze as I'd managed wk5r3 with no problems! This was hard and I could have stopped but was determined not too and now so glad I didn't!
I reckon it must be that the 20 minute run takes a lot out of a body that hasn't run that long or far in it's entire life (45 yrs in my case) and it needs quite a few days to recover. I so so hope I'll be ok for the next 2 runs of week 6!!!
Wish me luck!