@lynnmarie406 I did the 5 days of radiation at MDA in 2022. I had 30g, 600 gy each day, every day. I believe they are now scheduling it for every other day.
I did not have any skin issues. Now 3 years later, I do have some skin thickening where the radiation touched - it does not feeel different to me but I did have a last plastic surgery adjustment to that breast in November 2024 and the breast is taking longer to drop into place, but the skin feels okay.

I also have some internal scar, most likely radiation necrosis. It doesn’t change the shape of the breast, the breast is soft, but a lumpiness can be felt in that area. I would guess lots of people have this - but I don’t know.
I’d make the same decision again. Private message me if you want to talk! I’m in the Austin area.