My mother age 55 had swelling in feet and burning issues and pain in back i consulted near by hospotal they tested ecg it was not normal then they suggested for echo cardiography in which LVEF was found 48% further i have not tested any thing she is saying feeling normal but i want to know what should i do before to this my mother never had any problem like this what care should be taken in fooding eating should she do exercise or not or what kind of exercise what should i do further pls suggest