My wife is suffering from shortness of breath. She is very active, She is training for a triathlon (she has done many before) and takes crossfit classes. She does not feel the shortness of breath when working out. She feels it when she is at home sitting or at work. She had a CT scan with contrast done and a chest xray and both are negative. She had her blood oxygen level checked which came back at 85% She has a follow up appt with pulmanary doc on august 7th, but wonder what are next steps are?