First off, I want to say that you will be held in our thoughts and prayers as you undergo the radiation treatments.
I see that you started this thread a couple of days ago. You probably, hopefully by now, have a better understanding of what to expect with regards to the radiation treatments. And hopefully you've been given thoughtful and detailed follow-up care to these treatments.
I am not a radiation oncology expert. My back ground in oncology is heme-onc/bmt. Hopefully someone with more radiation oncology experience can better answer your concerns.
{{{{HUGS}}}}
Ted