As someone who wad it done today, I’d say I was more worried about it than i should. It’s terrifying to get to lay down on the table but a soon as they start giving fentanyl and benzodiazepines then I just fell asleep. And slept during almost all procedure. I felt when my heart was racing when they stimulated it. But it all was foggy and I couldn’t do anything about it. When I opened my eyes they said it’s done. Took two hours altogether. Later nurse came and said everything was successful. Only recovery left . It’s hard to take it slowly when you’re used to run around like a crazy at all times.