Hi there. An enlarged heart can have a number of meanings. Very often the term is used to explain LVH, which is enlargement of the left Ventricle. It is not necessarily painful. You give a small background description , so its difficult to know whats happening. The person may be having complications as a result of an enlargement? Sometimes an enlargement causes heart failure. In the advanced stages , failure has symptoms of varying degrees. Some people are incapacitated and find it hard to move around, but others can get by ok. Ask the doctor for clarity and write out any questions you have and make an apt to see them