That anesthesia works very fast. Within a few minutes of receiving it, I was out. Not rambling on, but out. I didn't receive it until I was in the OR. If that is the case for you, your friend won't be allowed in anyway, so there is nothing to worry about.
People respond to the anesthesia differently. Some get sick and nauseous, some are fine. I was lucky enough to be one of the latter. I had an excellent experience.
Don't worry though. You will be fine. Think good thoughts.
Welcome to the loser's club!