Heart muscle weakness can occur in one or both of these. Your symptoms depend on which muscle is weak. Look at the sections below to see where most of your symptoms are. Decreased blood flow causes your kidneys to keep salt and water in your body that may cause a sudden weight gain. Blood backup causes increased pressure in the left atrium and the lungs.
Heart failure can be mild to severe.
It is easier to treat when it is found early. Symptoms become worse over time if the disease is untreated. Symptoms can come and go or sometimes go away completely. You can control symptoms when you understand the problem and follow the plan of diet, medicine and activity. Information in the remaining parts of this site can help you control symptoms.