She had worked around metal dust
for 15 yrs. They could not determine, if that caused her
pulmonary fibrosis. According to my research, many things could possibly cause pulmonary fibrosis. But, ask this new pulmonologist all the questions that you can. If he cannot provide answers, then seek another doctor. From 2001 to 2004, my mother kept getting misdiagnosed. Doctors said she had asthma. Even possible heart problems. And all the time, it was IPF.