Better start by describing me. I'm six foot plus and almost 19st. I've just started running because I've entered myself for a half marathon at Dorking on 9th Sept. I've only been training since Sunday and run about four to five miles total. Problem is, I'm suffering from back pain, tension in the shoulder, stitches and shin stiffness. Looking for advice on how to get rid of all three really. Is it a case of just sticking with it and working through it? Or is there something I can do? Advice would be appreciated.