We were going to an Avicii concert during my graduation period and the line to the show was being real pushy. The barricades ended up breaking and a bunch of us fell. I was unlucky enough to hit my head on a pole during the fall. I was at the show for a while but the flashing lights and loud music was fucking me up more and more every second so we went to the infirmary. Turns out I had a concussion. Big sad that I missed that Avicii show now that he's gone.
Luckily I've never felt any need towards alcohol. It's never been beyond liking the taste. Never had a craving for it. Being able to say no is almost like a super power for some people.
Holy hell man, that had to ruin the show and graduation celebration. I bet if you had stayed at the show, you would have had some bad long-term effects to deal with. Surely a wise move to leave and just deal with missing out. Definitely sucks to never get that opportunity again, but at least you are okay now and can always listen to the old music.