For me it is social anxiety / being on edge around more than 4-5 people (apply from 1 person upwards if they are strangers) and having sensory overload because it is a bar / pub / whatever.
A lifetime of masking leaves its mark on a nervous system, i.e.
And alcohol down regulates / takes the edge off
You might look into neurodiversity / trauma in your life (if you haven't done so already)