Feeling of tightness in chest. spirometry reveals fvc 46% and fev1 47%. ct scan shows plural thickening in lower region with calcification on rt side?

Breathing issues: It appears you have both functional and anatomical abnormalities. However based on the data that you provided it is impossible to determine the cause. Further investigation is needed. I suggest that you go back to the physician who ordered these tests and he may tell you what to do next.

See Doc ASAP: This needs immediate medical attention if you have not yet seen a pulmonologist or neurologist , sever obstructive lung with very low vital capacity .( interstitial lung disease or respiratory muscle weakness), etc, etc.

See a pulmonologist: This is a true restrictive process and is not asthma. Inhalers are not going to cure this. Please see a pulmonary doctor.