early..if not later on it can lead to sleep apnea (no breathing)then you would need a c-pap machine to help you breathe..and heart problems..and you will suffer from chronic fatigue. the procedure's are a uvuloplasty,tonsillectomy,septoplasty...this straightens the airflow over the turbinates..in your upper airway...this will give the air a straight shot to your lungs. a deviated septum can cause a blockage in sinus drainage..this leads to chronic infections...pain and the feeling of pressure in your face