Radiation has come a long way since I had it, but I did radiation (long course). It wasn’t the worst thing, it did leave me feeling quite burned, like a bad sunburn for which I used aloe Vera gel. I bought a large pump jar and refilled a smaller container to keep with me. At home I kept some in the fridge. I still remember how good that felt. Lol
The other main side effect was that by the end, I was utterly exhausted. This didn’t last terribly long, I was back to my energizer bunny self in no time.
The endocrine therapy did not give me a lot of bad juju either. I did have a few more muscle aches, these were cured by walking. The worst I had (still have) is hot flashes. I am not sure to this day if that is because they gave me a chemical oopherectomy in my chemo, gave me a physical oopherectomy after chemo, or from the endocrine therapy that threw me into hard menopause at 38. But as I sit here 18 years later fanning myself. If I had to do it over again, I would.
Yes, I now have osteoporosis, but prior to the pandemic I was getting bone strengtheners. My doctor discontinued those due to chemo patients needing every available seat in the infusion room, I AGREE! There is such a shortage of available seats, nurses, supplies, etc etc.
It sounds like you are already having plenty of issues,
does any of this help you make decisions? Are your doctors giving you a choice between the two?