I was 1 run off completing week 4 when I was struck down with a nasty cold. I've been unable to run for a whole week now and still don't feel like i have the energy to get those running shoes on. I'm hoping to get out again soon but should I complete a week 3 run to get me back on track. I'm really worried I've put myself back and will struggle to get back into it. Any advise would be gratefully received.