Last Sunday I finished W2R3 but haven't run since due to having had a chest infection. Antibiotics now finished so plan on running again tomorrow morning. Do I start W3R1 or should I go back to W2? Also, some weeks ago I signed up and paid for for a beginners course of running at my local running club, thinking it would be C25K. Unfortunately it isn't! Most people there can run virtually non stop for at least 20 minutes and a lot of them have done park run. I'm always tail end Charlie a long way back so feel bad about it. Maybe I should just concentrate of C25K at my own speed. Any thoughts?