Most septal deformities result in no symptoms, and you may not even know you have a deviated septum. Some septal deformities, however, may cause the following signs and symptoms: Obstruction of one or both nostrils. This obstruction can make it difficult to breathe through the nostril or nostrils.
COPD is a type of obstructive lung disease in which chronic incompletely reversible poor airflow (airflow limitation) and inability to breathe out fully (air trapping) exist. The poor airflow is the result of breakdown of lung tissue (known as emphysema) and small airways disease (known as obstructive bronchiolitis).
Interstitial lung disease. Interstitial lung disease is a group of lung disorders in which the lung tissues become inflamed and then damaged. The lungs contain tiny air sacs (alveoli), which is where oxygen is absorbed. These air sacs expand with each breath. The tissue around these air sacs is called the interstitium.