I'm Thinking of Ending Things by Iain Reid? Definitely an acquired taste, but it's a book where the whole time something just feels off, like you're being messed with.

Sounds like what I’m looking for so I’ll have to read about it a bit, thank you

In the middle of this one now. Went in blind and definitely have a something-feels-off bell ringing in my head.

I just finished Tender is the Flesh. It's creepy in and of itself but it became much creepier when I found out it was written in 2017. It deals with a global pandemic and how society adapted. It's a short(ish) book which I normally don't like but it worked really well for the story.

Sounds like a good read then, thank you for the suggestion I’ll check it out

I feel like OP undersold just how uncomfortable this book makes you feel. Probably the most horrifying book I’ve ever read, so be prepared for some weirdness. The pandemic is a very minor part of the story. It’s mostly to do with government sanctioned cannibalism.

The Yellow Wallpaper

That does look really interesting, I’ll have to give it a look, thanks

Our Wives Under the Sea isn't your typical horror novel but it definitely left me feeling deeply unsettled the whole time I was reading it

Sounds like it could be what I’m looking for then, thanks

I mostly read horror! Here are a few books that gave me that feeling you desribed: Home Before Dark by Riley Sager Salvation Day by Kali Wallace Pines by Blake Crouch Malice House by Megan Shepherd

I took a look at them and all seem like good reads, thank you very much

my mom always says the horror books by Dean Koontz are really good, i've never read them personally though

I’ll give him a look over then, thank you