started a week ago shortly after i finished hitting...sharp pain at upper thigh hasn't gotten any better. especially hurts when i try to lift my leg...as in getting in a car. doesn't feel like a normal muscle strain. same leg, right leg, on which l have been working on loading on my forehand. i'm 52...i like to do research to get ideas of what is going on...any ideas? would an orthopedist be the correct doctor to see? thx.