The interesting thing about worrying about whether or not your heart will start again is that IF you have the time to worry and think about it,
your heart and circulatory system are doing just fine, because
your brain cannot think if it doesn't have enough oxygen. If you don't have time to worry about it, you are probably dead. ;-)
But really, sweetie, as I am sure you know, we cannot even talk about this intelligently unless you quit the ciggies right now.