Recovery can also depend on the the amount of radiation (Gy), fractions. the areas radiated, especially key areas, I counted 18 zaps for mine, if both sides were radiated or not, and the duration of radiation each day, and in weeks. It also depends on the type of chemo, any other combinations, and if given as Chemoradiation, amount of chemo, which also goes by your height, weight, rate of infusion, and the duration, that can impact side effects, recovery, as well as comorbities before treatment, surgery, since they may be worsened, and or compound the ones acquired from treatment, as well as how well one did during treatment that may delay or lengthen recovery.