I was so happy that I'd made it through W5R2 but my lower back wasn't sharing the enthusiasm. Went to an osteopath who confirmed that it was out of whack (my words not his). By the way, after seeing the osteopath I was sore, tired, headachy and, to my surprise, sad for a few days. Got another appointment tomorrow and hopeful that I'll be back to running soon after. But it means that I'll never know if I could have gone all the way through the program non-stop so I'm feeling somewhat cheated. And just when I was about to go for the big 20 mins!! Hopefully it will just be a one or two week delay. Was so amazed at my progress and would hate to be forced to give up (wow, did I really just admit to 'enjoying' running?!). I'm now envious when I read the posts from those on the same week as me go forward but I'm pleased for them - and it will give me an extra push to catch them up! Wondering though at what stage of the C25K programme to start with again.