AC affecting the heart?

Hi @ddon. Fairly quickly after my first chemo, I developed what I'd probably call an activity intolerance.  My resting heart went up a little, but almost any activity such as walking a short distance (<50m) would elevate my heartrate quite dramatically.  Before my second chemo, when I had my oncologist appointment,  I walked from the waiting area, was weighed before the blood pressure cuff was put on my arm, and when they put tgge probe on my finger and got a reading,  mr HR was 120 beats per minute.  That remained my pattern. I'm now under the care of a cardiologist, and take a beta blocker to control it, but more than 4 years out from chemo, none of the echocardiogram's that I've had have indicated any heart damage
Take care