Acute pain, for the most part, results from disease, inflammation, or injury to tissues. This type of pain generally comes on suddenly, for example, after trauma or surgery, and may be accompanied by anxiety or
When enough blood is not supplied to the heart muscles, it leads to angina. The pain experienced in angina is somewhat similar to that of the heart attack. The angina pain can increase due to physical exertion and might disappear on relaxing. But if you feel the pain even in the state o...