Setting: 2003-2010 (story takes place in the present) ; America
I was tinkering of an idea where the character has some sort of disease in her early childhood, but recovers from it through surgery or whatnot. Then when she is an teen or an adult several years later she gets into a relapse of the same disease, but this time she has a lower life expectancy and isn't expected to live very long. I was wondering if anyone knows some sort of disease that has this characterization? I tried googling, but I got nothing that I wanted. I was thinking maybe leukemia...?
Thank you for your help.