Washington was named after the first U.S. President, George Washington. The D.C. stands for District of Columbia, a special area created that is not a state. At first, it was made up of a piece from Virginia south of the Potomac River and a piece from Maryland north of the Potomac River.
Chest pain can be caused by a strained or pulled muscle, a pinched nerve or an inflamed tendon. An injured rib can also cause pain that is difficult to localize. Shingles is a viral infection that may begin as a burning sensation on the chest, torso or back before lesions appear.
Other, less common causes of chest pain include: 1  A blockage in a major artery of the lungs (pulmonary embolism) 2  An enlarged or thickened heart (hypertrophic cardiomyopathy) 3  Narrowing of a valve in the main part of the heart (aortic stenosis)  Swelling of the sac around the heart (pericarditis)