Feeling very sad and dejected as I've had to stop. Knee pain is too severe to continue for now. I suspect it was too much shock moving from the treadmill to the trails on week 7 with non-stop 25 minute runs. Probably needed to go back a few weeks in the program to get the legs used to ground-slogging. So I'll concentrate on rehab for a few weeks and see how they are feeling.
And yes ..... I was running slowly! And thoroughly warming up. And hydrating well. And stretching afterwards.
So p!ssed off! Was really enjoying the progress and especially being outside. Hope you're all still here when the knees are feeling ready again! Happy running all!