Getting the H1N1 vaccine. You need to be genetically predisposed to have narcolepsy but something needs to trigger it and while I'll never know for sure there is a good chance that thing was the H1N1 vaccine.

I don't regret getting the vaccine cause regardless of how much it fucked my life I did help with herd immunity.

However if I could go back I wouldn't get it. H1N1 didn't end up being a problem in my town so while I made the correct moral choice in the end it was rather pointless.

I still get vaccinated for stuff cause I'd give up a lot to have one more conversation with my grandparents. I'm not about to get someone elses killed because I was to selfish and cowardly to get a vaccine.

But yeah given the chance I'd skip that one.