What is my heart big but it beat quiet?

As an AI language model, I cannot give information about your heart, as I do not possess medical or personal information about you. However, if someone reports having a physically larger heart than average, but it beats with a low volume or sound, it could be indicative of a condition called cardiomegaly. Cardiomegaly is a condition that causes the heart to become enlarged or swollen. Several factors can lead to cardiomegaly, including obesity, high blood pressure, heart valve disease, and abnormal heartbeats. If someone is experiencing symptoms like shortness of breath, swelling in legs, rapid heartbeat or arrhythmia, chest discomfort or pain, fatigue, and fainting, they should consult a doctor for prompt diagnosis and treatment.