Iris, a character in The Girls I’ve Been by Tess Sharpe, has endometriosis.
From the publisher:
Nora didn’t choose a life of deception – she was born into it. As the daughter of a con artist who targeted criminal men, Nora always had to play a part. But when her mother fell for one of the men instead of conning him, Nora pulled the ultimate con herself: escape. For five years Nora’s been playing at normal – but things are far from it when she finds herself held at gunpoint in the middle of a bank heist, along with Wes (her ex-boyfriend) and Iris (her secret new girlfriend and mutual friend of Wes … awkward). Now it will take all of Nora’s con artistry skills to get them out alive.
UK publisher: Hachette (January 2021)
US publisher: G.P. Putnam’s Sons Books for Young Readers (January 2021)
Author represented by: Jim McCarthy of Dystel, Goderich & Bourret Literary Management