OK, I don't know why I like you or bother, but..
ECT is *not dangerous* unless you have a direct, measurable heart ailment. They don't "shock" you to be shocking you - they induce a convulsion as a way of cleaning out the garbage that's clogging your nervous system. If you are at all normal there will be few effects on you - effects that clear up and presto, you've been rebooted and can reorganize your thought.