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.
Pericarditis: A little fluid around the heart can be normal, but if it is seen it is likely abnormal. The most common cause of pericardial fluid is a viral infection, or other causes of inflammation which can be some disease like lupus, or medications. Injury to the heart can also cause fluid.