@shmerdloff — Congrats on figuring out how to get great heart numbers! I promise not to tell your cardio doctor anything! Thank you for telling me about amiodarone! Fortunately for me, I have not had to take that one yet! I think pacing, pacemakers, and balancing may be in my future. I am trying to do everything I can to prevent or forestall that. I just started taking 40mg of Kerendia and I think it is helping me to stay balanced. I can walk and do gardening now without getting dizzy or short of breath. I think all the blood tests are helpful. They gave them to me to check on how I am doing on Kerendia. I am not convinced I now have Congestive Kidney Disease though. Good luck!