My heartfelt condolences on your loss. My husband was just diagnosed last month with treatment related MDS. He had cancer of the nasopharynx 5 years ago and had radiation and chemo.
We were informed that there were risks down the road from the treatment, although I don’t know if I understood exactly what those risks were. However, he had only a 40% chance of a cure with the treatment so we would have chosen the same treatment even if we’d known the eventual outcome. It gave us 5 cancer-free years and he would probably have died quickly without treatment since it had already spread to the lymph nodes.
I lost my father 2 months ago to primary AML. It is very hard and now I see my husband starting down the same path. I’m not ready to give him up yet. But I would not trade these last 5 years for anything.