Hi thanks for contacting health care magic. You gave not mentioned which report you have done.... You had history of whooping cough .For that did you use antibiotic ? You are Also smoker.... So you could have restrictive lung disease. It might be fibrotic disease.... To differentiate restrictive and obstructive disease spirometry done that is pulmonary function test.... Chest x ray also useful.... According to cause treatment guided... Avoid smoking to prevent damage to lung tissue by elastase that is released by smoking.... Take care...