Hi, AlGal. I have LQTS, and I have had an ICD since 1991. I remember how scary it was when I first got it! So I do understand your worries.
I have had so many zaps from mine that I have no idea how many. It hasn't happened in over 11 years now though.
It's hard to describe what it feels like. Yeah, like a VERY hard kick in the chest, only from the inside. I won't lie to you!--I hate it. A LOT. But--every time it has happened, it has saved my life. I remind myself, would I rather get a kick in the chest and keep on living? Or no kick in the chest, and no more life? I'm really happy I'm alive.
Yes, I did get used to living with it. I do not think about it every day, or even every week. I pretty much only think about it if I start feeling those irregular heartbeats, because I know that, if worst came to worst, the ICD would save my life. As it has many times already.
So, yeah, it's scary, and it's awful when it does fire, but it would be a lot worse if it didn't.
That's just my own experience. I've actually talked to people who don't particularly mind it when their ICD fires.

Is there anybody out there who has a different experience to relate?
- Sylvia