The specialist I saw was t able to determine for certain, but believes it was from a prior motorcycle crash. I’ve had many crashes over years as I used to race and I never had my breathing tested. I tried to contact the doc who diagnosed me and he hasn’t got back to me for months and I just feel I want to move forward aggressively to see if I’m a candidate for the procedure. I’m a bit overweight and have been working hard in a running program, but I have to walk run because my breathing just won’t allow me to run. I used to run long distances when I was younger and I’m registered for some races and the rest of me physically would allow me to improve greatly if I could breath normally. Thanks for your help.