Refused treatment beginning of the year and now I read more on my condition **sigh**

I have a rare heart disease cardiac amyloidosis and they wanted to do a heart catheterization (ablation) on me, inject dye and fix blockages or anything. I declined that in January. I read an article saying something about if left untreated you may live two months to four years. Anyways, I don’t tell anyone about it much. It’s hard to find strength to go through things alone. I already have multiple chronic illnesses, so I just haven’t decided my plan yet. What if I missed the window to do something?! My children don’t get that I am even sick.