Caporegime
I've had this weird experience recently whereby the morning after a social occasion, and some days after, I start questioning whether the person I was with actually enjoyed it and whether I should have gone at all. This doesn't seem to be related to drinking though, as I get it even after an evening where I didn't drink. I think it's just self-doubt in general, maybe related to OCD.
To answer your question, yes, it can linger for a few days afterwards. I try not to pay too much attention to it.
Funny you should say that, I met up with an old work colleague last Tuesday and the day after I felt the same way, wondering if I was good company etc. I put it down to essentially being out of practice socially, what with the pandemic etc.