Hi, I posted a few threads lately and thanks for the replies. I still don't understand a basic thing - the body is a 'machine'. Every machine (car, dish washer, plane etc.) has rules how to maintain it in a optimal way. I think everyone here will agree that if you lift up a 50 kilo box 100 times using your back - something harmful or even very harmful will happen to you. If somebody doesn't agree with that - please post a video of you doing that How can you say - resume all activities, run as much as you want, all pain is TMS etc. - when maybe there is a *real* structural problem inside. And even if there isn't - how can you do all activities without learning basic things like how to run properly, how to balance properly, how to use your muscles etc. - things that you learn in physiotherapy, feldenkrais, sports education etc. I'll be happy to understand this. Thanks!