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.
Chest pain has a variety of sources, and virtually any structure in the chest can cause pain. This includes the lungs, the ribs, the chest wall muscles, the diaphragm, and the joints between the ribs and breastbone. Injury, infection or irritation to any of these tissues can be responsible for chest pain. Occasionally, pain can be referred from another area (such as the abdomen).