Hi folks, I did my first week 4 run on Friday. Astonished that I could keep going for 5 whole minutes (twice)... and am generally very pleased with progress. Then I walked up a mountain/hill (Cadair Idris) yesterday with some fit young people and boy do my knees and legs ache. So, do I allow myself an extra day of rest or push on with the programme? I really don't want to get slack - and it isn't raining at the moment - but nor do I want to give myself any injuries or too much pain to put me off. So should I go or should I not?