Re: Pulmonary Fibrosis????
If you are having shortness of breath, a Pulmonary Function Test (PFT) sometimes called a breathing test would probably indicate whether you are having any respiratory problems. If your PFT comes back abnormal, then you will want to see a Pulmonary doctor. Since your blood oxygen is 100% the heavy feeling could be caused by stress or a panic attack. I assume the ER also looked for signs of a cardiac problem and ruled that out?