Side note: I was never warned about a particular effect of propofol. They started pumping it in and told me to count down from 10. At about 5, I suddenly felt this horrible searing, burning pain in my IV-connected arm that I felt spreading throughout my body. Thinking something was terribly wrong, I opened my mouth to say I'm feeling awful pain, but by then I was already falling unconscious. So I only consciously felt the pain for a few seconds, feeling totally fine (besides grogginess) when I woke up, but it was panic-inducing and some of the worst pain I've felt.
Apparently it's pretty common for propofol. I think they might have told me I might feel a little discomfort, but they didn't mention the possibility of sudden, dramatic pain, for some reason. I could've grit my teeth through those seconds if I knew it was possibly going to happen, but I feared that I was having an unexpected severe allergic reaction or something, so I spent those few seconds absolutely terrified.