Is it normal i get incredibly drained from spending time w people

i guess i'll start this by saying that i don't hate people and their company. it's just that when i hang out with someone, i need at least a week off in solitude before i hang out with anyone else. i feel like i could go years without company -- i have gone a year before without issue. and ik with covid shit nobody's really supposed to be hanging out but this is something i've felt for most of my life.

i hung out with this guy (social distanced and quarantined beforehand) and when he left that afternoon my other friend texted me asking when i'd be free. and i made up some excuse because those couple hours with my friend drained me long enough to last weeks.

it's like the idea of having to present myself a certain way, entertain someone, talk a lot and listen is just exhausting. i wish i could use italics on that. i'm so damn tired.

i don't really miss people either. and when i do get lonely i feel so guilty about it since it's my fault i keep saying no to get togethers.

i love living a simple life where i feed and provide water for the backyard birds, walk my dog, and just generally laze about online. it makes me happy and i genuinely can't understand people who feel like they're going crazy when they haven't talked to someone in a few days. i won't even notice a month has passed between the last time i even texted someone unless i'm reminded.

i know this is weird but is there anyone else like this? i've never met someone as antisocial (without disliking the people i'm spending time with) as myself.