Thank you for your detailed replies.
As you do not have any symptoms of infection, we need to rule out any reactive allergic condition.
The next step would be to perform a lung function test, using a device called a spirometer.
This measures how much air you can exhale after first taking a deep breath and how fast you can empty your lungs.
Most likely a diagnosis is possible with this.
In case this is normal, a CT scan would finally be required.
Discuss these investigations with your doctor.
Please let me know if this was helpful.
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Wishing you the very best in life.
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