Unable to drink a certain alcohol after a certain experience?

A few weeks ago I drank a LOT (new year’s day), it was a mix of soju, red wine, white wine and beer. I ended up blacking out and throwing up etc etc. I’m currently with my friends and trying my best to finish a beer but with every sip I have to force myself to not gag. Feels like I’m gonna throw up after every sip. I know this is a thing that happens after a certain experience with alcohol but WHY does it taste so disgusting?? it’s almost been a month but it keeps reminding me of that particular day. I’ve been fine with beer all the way up until after that experience I had on the 1st of Jan.