Why was my hangover so bad?

I’m 22 (f) 5’9, 135 lbs. I didn’t start drinking till I turned 21 a year and 3 months ago, and I don’t drink very often, like once or twice a month, and for a few months of that my tolerance was very low because I was on Zoloft.

Anyways, there have been a few times I threw up while drunk. One time I even threw up multiple times and blacked out, but still got up the next morning at 6 and went swimming and felt just fine. I’ve never felt much more than a headache as a hangover.

But the other night, I had 2 Twisted Sips which is wine, 12% alc volume, and this was my first time being drunk on wine, and it slammed me. I threw up like 4 times, and the next morning felt awful. I had a headache and was extremely nauseated. I drank a lot of water and felt okay to go work at 2pm, but I still didn’t feel great and ended up throwing up twice at work. The nausea was gone by the end of the shift and I felt mostly ok, still tired tho.

But like, what was the deal with that? I have never had an experience like that drinking, and I’ve drunken more than that at once before I’m pretty sure (though I don’t know the math exactly with the alc volume)