She is taking two pills a day.
Its due to being over stressed. The thing is she stresses herself a lot.
It could be due to infection, or something like a hole in the heart which can easily be repaired in most cases. In most cases, enlargement is due to the heart having to work too hard, or the blood pressure in the heart is far too high. I would certainly be asking a professional Doctor a lot of questions right now.
How enlarged, is it stable or growing?
Some people are born with an "enlarged" heart.
My atrium is enlarged due in main part to a leaky mitral valve. The valve has been repaired and the enlargement has halted, but I have a permanent case of atrial fibrillation which is related to, or even caused by, the enlarged left atrium.
How much any one needs "taking care of" depends on what they can no longer do for themselves that has to be done to continue to live.
Have her get seen by a cardiologist. They will put her on a medication like a beta blocker which will help keep her in NSR, and less symptomatic. I have an enlarged heart as well.
Has a cardiologist established the cause of the enlargement?