The closest character parallel I saw was between Strike and Hermione. Strike foolishly keeps pushing the limits of his bad knee and hamstring until he collapses and has to get treatment in the hospital for not just the stump itself but the stress-induced muscle spasms in both his leg and face. Hermione, by trying to take every subject Hogwarts offers, drives herself to the breaking point, culminating at the DADA final exam when she falls apart and fails to recognize the boggart, much less defeat it. By book's end, Strike has finally resolved to address the issues and take some steps to improve his health by losing weight and stopping smoking. Hermione decides to turn in the Time-Turner, drop Muggle Studies and Divination and take a normal schedule.