A pulmonary medicine and sleep medicine specialist diagnosing and treating airway and lung conditions such as asthma, COPD (emphysema and chronic bronchitis) , respiratory tract And lung infections like pneumonia , bronchitis , Tuberculosis ; bronchiectasis; pulmonary mass ; Sleep related problems - insomnia , snoring , Obstructive sleep apnea (OSA) , Obesity hypoventilation Syndrome (OHS) ; parasomnias like sleep paralysis, Sleep terrors, nightmares etc .