I did w7r1 on monday. I felt ok afterwards then the back of my right knee started aching, I'm not sure if the running is to blame or maybe the garden. I planned on doing w7r2 today, but thought it wise to rest instead. It doesn't feel too bad now, but I'm not feeling too good overall as my kids have brought a bug home. I'm not sure if I should run or not tomorrow? I'm eager to get going again though.