I am 67, male and athletic all my life. Over the past 5 years I have slowly began losing my ability to exercise vigorously. I cannot breathe enough and lose color in face. Feel faint. This occurs when I play pickle ball, run (not jog) or try to do squats in the gym. I did have vocal chord surgery in 2009 and have a reduced airway however I was able to perform “ok” for the first couple of years. Now I just cannot push myself at all without feeling like I could die