@ciri I used that same marble example to my cardiologist. I recently had an episode that felt like the alien creature was exploding out my chest. I passed out and luckily I woke up. In my case the pvcs are aggravated by lack of sleep and physical stress. Metropol made me bed ridden for 3 days. I stopped taking it. The new EP just put me back on it. Have a heart monitor on now so we will see what happens.