Hi Jody!
My mom had both cistplatin and radiation together, 6 weeks of both, and she actually responded to the chemo much better than any of us expected. She was not sick at all (very little nausea as she was given anti-nausea meds during and a few days after each treatment) and only really felt fatigue towards the last 1 or 2 treatments. Radiation is really the one that will give you discomfort.
Hang in there, every ounce of fight in you will be worth it. Let us all know how you get on when you start! Best of luck!