With eye pain, there may be other symptoms too, which may help diagnose the cause of the discomfort. These include: 1  Conjunctivitis-red itchy eyes. 2  Tears. 3  Light sensitivity (photophobia). 4  Discharge, which can be clear, or thick and coloured (pus). 5  The eye being crusted shut after sleep due to discharge.
The process of breathing performs a number of important gas exchanges through inhalation and exhalation. When someone inhales, they contract and move their diaphragm, which allows the lungs to expand. This is a part of the process needed to psychically suck in the air. When a person exhales, the diaphragm relaxes and the movement is undone. This allows air to be gradually pushed out of the lungs.
Pulmonary embolism is the most feared cause of chest pain when breathing. Pulmonary embolism is caused by blood clots that go to the lungs mostly from veins in the leg and get lodged in the blood vessel of the lungs. They can produce inflammation in the lungs that can irritate the nerves in the pleural membrane. This results in chest pain when breathing.