I think the pain element also has a lot to do with where the radiation is being aimed. Everyone is different. We all have different pain tolerances and such. I think what really helped me get through it was planning ahead. And knowing what I could expect. I have a very high pain tolerance - as such didn't need to use the peg they installed. Drinking that boost or ensure was hard there for a few weeks. I mean I literally had to take a deep breath and CHUG. With like one breath at the halfway mark. But I also was able to drive myself to treatment daily, and fared okay with chemo.

Plan for the worst hope for the best. And stay positive.
hugs