When I was diagnonsed with CHF I was told after an ultra sound that only 25%of my heart was functinging.Since then (Jan.8, 2019) I have seen a cardiologist and he stressed often during my exam that my heart is very weak! And my BP is low,so he put me on a medication to increase my BP.Is this normal procedure? Or will it cause me to have high BP eventually? Thank you.Im 64 white female.