Everyone reacts differently -- try speaking with your radiation oncologist or his/her nurse and let them know what's going on. They are experienced with this and probably have advice and/or medication for you.
I hope you start feeling better soon!
Warmly,
Chris
Healingwell62
Breast Cancer 1 & 2 Community Leader
I don't know about the increase, but my sister said that Zantac helped her feel less nauseated. I hope it helps you. Best wishes...