Contemporary Examples. 1  Biden is such a straight shooter that pundits say he needs a muzzle. 2  Suddenly, the darkness came alive with muzzle flashes and tracer rounds. 3  The result of the back-and-forth was guaranteed national publicity for the very ideas the politicians wanted to muzzle.
Early symptoms of fluid around the heart include feeling out of breath, even when lying down. Breathing often becomes easier when you sit up or lean forward. Other signs include feeling lightheaded or dizzy, chest pain that is sharp and stabbing, chest tightness and a dry, chronic cough.
The heart pumps blood through the lungs. If the heart is pumping inadequately (called heart failure), fluid may accumulate in the lungsâa disorder called pulmonary edema. This disorder causes dyspnea that is often accompanied by a feeling of smothering or heaviness in the chest.