Non smoker that doesn't mean anything exposed to second hand smoke for 11 years 4 for those 4 of the people in the house smoked.
I have been having ct scans for a lung nodule starrt in 2002
it starrted with an abdominal ct scan which showed ground glass in the lower lobes and I in sisted on a full chest ct scan. So it went from ground glass to empyhsematous to copd/small airway disease.