Hyper-inflated lungs is a hall mark of asthma. COPD
is rare in a 27 yr old. Stress
can make asthma worse and asthma can make stress levels rise. I have found that a peak flow meter is helpful in patients who have high stress levels and asthma. The meter helps patients differentiate stress from asthma. It can reassure that the lungs are fine when stress is elevated.