So, yeah... As other comments have pointed out, figuring out why that is happening is the point of the game.

But also, yes, there's going to be a lot more dread and anxiety. This is a much darker and more serious game than the art style implies. It contains some of the most effective moments of pure horror I've ever seen in a game. The ending, especially, is profoundly sad, and beautifully hopeful; an absolute rollercoaster of emotions.

If that's more intensity of feels than you're looking for from your entertainment, it's probably not your thing.

If you don't mind spoiling yourself and want to see what the fuss is about, this video is a pretty powerful summary of why people care about this game so much - https://youtu.be/Hr6WGu3omUI?si=qag5GchJp11Qk6Q3 (cw: frank discussion of a family member dying of cancer).

Edit: This video - https://youtu.be/Ga-oMRAcWCY?si=sHDjzJJhHyTqqwS6 - is a more direct summary of the game if you just want a compressed play through.