question: hi, my  mom had a low pumping promblem in the heart  15-20% she is a diabetic patient sugar is always around 400-500 an had a thyroid while her heamoglobin was around 8 she was under the observation our local doctor given 2 bottles of blood now blood is around 10 whether it is curable or not?suggest me some best cardiologist doctors why heart pumping get slower? plzee ans herage is 52, height 5'4,weight 65.