This is related to this question: Is it bad that my feet turn outward when I run?
I have the exact experience, but my circumstances are a little different as I believe I have a physical condition that forces me to run this way.
I don't run much at the moment, due to a debilitating knee pain that running triggers. Recently, I was persuaded to undergo an assessment by a specialist running school, who videoed me and pointed out a few things wrong with my technique that were likely responsible for my discomfort. In particular the fact my feet turn out and I cross-over - this they blamed for the knee pains.
I took some lessons, and I've mostly fixed the cross-over. However, I cannot seem to fix the turnout without causing pain. If I do what they tell me, then the outer edge of my foot is taking nearly all the load and in an extended session, results in ankle and shin pains. I've tried explaining to them, but they seem to be used to dealing with people for whom the turnout is easily correctable - i.e. there are no physical reasons for it.
Let me explain more here - if I sit on the floor with my knees aligned vertically, my feet are turned out around 15 degrees. My feet are also turned with respect to the vertical plane by the same amount, i.e. if I sit in the same position against a wall, then I can place the outside edges against the wall, but the balls of my feet are about a finger width's distance from the wall.
What this means is that when I walk, if I turn my feet to that they point straight ahead, I end up walking almost completely on the outside edges of my feet.
The question is what should I be doing? Is my problem correctable - i.e. If I keep trying to be straighter, eventually everything will start working better or should I aim to land with my natural turn out position?
I'm not sure anymore who I should be talking to about this - the running school appear unfamiliar with how to deal with my condition. The previous "specialist" seemed to know very little about running and with hind-sight was useless to me.
Having taken advice from many different people over the past few years, what I'm looking for here is info from people who are familiar with my condition, and have experience with trying to resolve it. If you don't have this experience, please don't add your two-pennyworth for the hell of it.