Pulmonary Fibrosis Support Group
Diffuse parenchymal lung disease (DPLD), also known as interstitial lung disease, refers to a group of lung diseases, affecting the alveolar epithelium, pulmonary capillary endothelium, basement membrane, perivascular and perilymphatic tissues. The term DPLD is used to distinguish these diseases from obstructive airways diseases. Most types of DPLD involve fibrosis, but...
It's a good sign your PFT's are otherwise normal.
Diagnosis of ILD's or lung abnormalities in general can be complex.
You're on the right track to consult a pulmonologist.
With any pulmonary function test, good coaching prior to and during the test is essential.
Good luck and God bless,
Philo