Hi everyone. I last posted after W1 and since then I have stuck to the plan. Been experiencing all the highs and lows as others (it's inspiring reading them) but I haven't read about anyone get lower back pain, particularly at this stage. This week I've developed a pain in lower back, right of the spine close to buttock. It doesn't go down the leg. It's not too painful but I'm wary of pushing through the discomfort in case I'm doing more harm the good. I run on soft-ish paths, have good shoes and try to not to hit the ground with my heel. But now I have a constant niggle/pain, particularly when walking. I would so hate to be forced to quit because this C25K is just so rewarding. It's made me do things I would never have believed myself capable of including getting up at 7am to get my runs in when I knew I had to work late, or even running in freezing cold rain. I'm like a new person :-). But is my back pain normal, like shin splints (which fortunately I've been spared) or possibly something more serious? I read that W5 is a biggie and would so love to try it. Any advice would be much appreciated.