The radiation that my mom had to her neck and spine was harder then the chemo treatment. She ended up in the hospital from dehydration and pneumonia. The doctors did not do a good job on monitoring her. Make sure that you advocate to have your loved one put on liquids if they are not eating or drinking and have all there vital signs checked. I had asked if my moms reaction was normal and they said yes, so she ended getting extremely ill. Trust your instinks. But in a nutshell the doctors will tell you that there are no symptoms from radiation but this is not true.