[hannah]

I have a bit off the same as you.. I have one bigger foot(a half size) And one longer leg maybe few mm's. And if you look well you can see differance in the height off my hips, one is a bit lower then the other. I went to a physiotherapist and he noticed a curve in my back where two spine ''vertebrae's'' (according to google translate this is what I mean, correct me if I'm wrong) touched each other. So these two vertebrae's touched each other on the shorter side off my body which affected the cartilage and caused me backpain. He has been massaging me and made shoe support soles for me. I wore these soles for about 2 years and now I'm complaint free.. I still have the leg and boob and foot difference just like you describe but no more pain and straight shoulders..
So maybe this could be usefull for you as well. Of course as someone mentioned earlier think off your body ''attitude'' and maybe as well some excercises which you can get from an physiotherapist.