Hope I'm not over-killing this topic, but really want to get a confirmation on this. At the top of the back swing, should the most tension be on the inside of the right leg, and higher up somewhere like the inside of the right thigh and the groin area? Is it possible to be overdoing this tension feeling?

I have aches in my right chest after long practices at the driving range. A friend suggested that I might not be rotating my shoulders enough hence causing too much tension on the right chest. What else could be causing an ache in the right chest??