She is diabetic, anemic, suffers high blood pressure, and has seizures among other medical issues. I am extremely alarmed and worried.
Welcome! I hope you will find lots of support here!
Being diabetic, having anemia and high blood pressure all goes along with having kidney disease, or I should say it's not surprising that those issues are present along with her kidney disease. Often they go hand-in-hand. She should be getting treatment for all of those. Not sure about the seizures, if they fit kidney disease or not.
I'm sorry I don't have experience with surviving cancer along with all her other medical issues, but there may be people here who do.
It's understandable that you're alarmed and worried! We all are when confronted with such news! Make a list of the questions you'd like answers to for the next time you see the doctor. Look at all the resources offered by Renal Support Network, and call if you'd like someone to talk to who has been through some of the same issues. Patient HOPEline - (800) 579-1970 - 10 am to 8 pm PST.
keep in touch!