3 or 4 day hangover??

Does it make sense that I have a four day vodka I duced hangover that includes pretty bad brain fog, confusion and terrible short term and mid term memory? I went to a newyears party and drank a LARGE amount of vodka (second time ever getting properly drunk/shitfaced) and more or less didn’t stop untill I threw up… At that point some guy sat me down and fed me water after it seemed like I’d keep it down….

long story short I woke up in the morning and thought I was fine untill I stood up and realized I basically still felt tipsy

Two days later it’s diminished a bit but not much and I still feel super out of it almost like how I imagine it feels to be concussed and have mild Alzheimer’s……

Couple other important things to note:

While I didn’t blackout at the party my memory of it is pretty patchy/hazy and while I don’t remember doing drugs or falling and smacking my head or something like that, it COULD be a possibility

I have ADHD and could that in combination with alcohol have conspired to fuck me up more (aside from the obvious impulse controll issues😂)?