Assuming there are at least some NFs out there who have a special place for TFiOS because you have/had a serious illness.
I'm a survivor of a bone marrow transplant for aplastic anemia (my bone marrow, which makes all blood cells, decided to take a more or less permanent vacation on my when I was 4, so I had to get what was left of it killed off and replaced)
There were so many things in TFiOS that I connected to. From the list of good nurse qualities, to how much of an expert Hazel's mom was, some of the stuff felt like John had taken it out of my actual life.
I'm curious to hear what did/didn't resonate for others, and just what you thought in general!