Endocarditis, also called infective endocarditis, is an infection and inflammation of the heart valves and the inner lining of the heart chambers, which is called the endocardium. Endocarditis occurs when infectious organisms, such as bacteria or fungi, enter the bloodstream and settle in the heart.
Endocarditis is an infection of the endocardium, which is the inner lining of your heart chambers and heart valves. Endocarditis generally occurs when bacteria, fungi or other germs from another part of your body, such as your mouth, spread through your bloodstream and attach to damaged areas in your heart.
Sometimes, shortness of breath gets better or worse with certain body positions. For example, lying down can trigger shortness of breath in people who have certain types of heart and lung disease. Keeping track of your symptoms can help your doctor figure out what's wrong and recommend the best treatment.