I've given up hoping that the side effects will be minimised to be honest. I've read too many threads from people who did everything and took all the extra meds and stuff and still puked and felt uncomfortable with the racing heart beat. And with everyone feeling differently, and reacting differently, I don't think it's worth trying to find an average since it's so subjective.
I've just calmly accepted that the ~20 mins before I faint will be kinda sucky, but not detrimental. I want to be mentally prepared and not worry about feeling like I did something wrong by being one of the... well, almost everyone... who still pukes and feels gross.
I'll still do some prep anyway because I might as well, but the main goal can still be achieved without it.
Def understand others who want reassurance and to minimise all discomfort since it's last minutes though. I just think I'd rather prioritise being mentally prepared than physically hopeful.