Hi, I'm Diane (dyannne), 81. I had Afib 10+ years ago and had an ablation, which fixed it for 8-9 years. Had a heart attack last May and was recovering very well, working out at the gym, going 3.6 mph on the treadmill, and then my heart went out of rhythm. Boom. I'm bummed. It's not as bad as it was before. I'm continuing going to the gym lifting weights, doing the machines, but not treadmill. I don't have enough stamina for that.