The good news is that an orthopedic surgeon in Pittsburgh has agreed to take me in as a patient.  I didn't think he would because his office manager doesn't like dealing with my insurance company.  They don't like to pay for out-of-network stuff but the bottom line is that there isn't anyone in my town who does hip arthroscopy or whatever it is that one does for FAI. I don't have a definitive diagnosis yet but the clinical diagnosis sure points to FAI, probably caused by retroversion of the acetabulum.  Lots of big words and big scary surgery is a definite possibility.  I could probably choose a more conservative approach but that would be the end of my running/tri career.  Fingers crossed I get some answers soon.