@Ali Marie the thing about chemo and radiation is you are well looked after. Of course you may get side effects but in my case every step of the way I was monitored. On this forum ladies will report side effects some not pleasant. Without exception the problem is usually resolved or a solution sort to fix the problem.
The medical staff are great .Your oncologist and breast care nurse are only a phone call away. Nobody knows how your body will react but I do know the oncologist will have your best interest at heart. Usually everything is resolvable.