That said, carvedilol lowers blood pressure, sometimes to an extreme. Were you taking
carvedilol when your heart rate went to 150? After being off
carvedilol, what is your blood pressure, and did your heart rate change after being off the drug?
I'd ask your doctor if you should have a nuclear stress test to look for a blockage in your heart arteries, and/or a heart echo to look at valves, etc.