Why tf did I black out after 5 shots ??

I recently quit drinking because it caused withdrawal after 2 months of drinking, which is crazy because usually it has to be longer and I wasn’t a crazy heavy drinker, I’m 5’7 and weigh 110 so maybe that’s why it affected my body so heavily? I am terrified of withdrawals so tonight I only took 5 shots just for the fuck of it, but it made me black out ? I did eat too. All the shots were taken in a timely manner as well I followed the 20 minute rule. When I was a jit I drank like hell and none of this ever happened, no withdrawal, no blackouts, nothing. I did stop drinking completely in 2023 and just started again in August. I’m not addicted to drinking but trying to keep up with the people around me gave me withdrawals and it wasn’t even every night so I’m confused on how that work because like I said I drank wayyyy more when I was a jit, but I did weigh 145 so maybe that affects it? Also I been handling withdrawals like a champ without rehab and continue to plan to until it’s gone, I just thought I could have a cool lil drinking night last night, but idk anyone who black out after 5 spaced out shots ?