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.
The pectoralis muscles are the largest muscles on the chest wall but there are several other muscle pairs present. These muscles can be easily strained with exertion. Chest wall injury is more likely to lead to a bruised feeling or even a stabbing sensation rather than a squeezing chest pain. However, chest wall problems should be considered when there is superficial pain (pain on the surface). Angina. Angina pectoris is heart-related chest pain caused by insufficient blood supply to the heart muscle.