@Red_Fox22 - It could be worthwhile considering that your mother has got her diabetes under control and that she is living a good life with it.
Perhaps, as you see your Mum infrequently, she doesn't want to spend that precious time with you discussing diabetes. When she was diagnosed a few years ago, and did her research on it, did you take much interest in it? Did you do any research in to the condition she had been diagnosed with, or did you rely on her feedback to you?
A few months ago, during a consultation with my Endochronologist, we were reviewing my medical history, and that of my immediate family. He ordered up a very extensive list of tests to be done, for some fairly scary autoimmune (AI) conditions, because of the saturation of AI conditions experience by both my parents. When they all came back negative, he just couldn't believe it. Even with an extremely high likelihood, it's not necessarily nailed on. Thanks goodness. That may change over time, for all I know.
Curiously enough, I had quite a long conversation with my niece a couple of weeks ago about diabetes. Her father is T2, her paternal grandfather (my father) was a steroid induced diabetic. In her 20s, she wanted to talk about it.
We talked about the genetics in her paternal family, but can't really have much conversation about her maternal family, as her mother was adopted, with little known about her lineage. My advice to her was to stay trim and keep moving, to eat a sensible diet, but to enjoy life's adventures and make the most of them. Does that make me a bad auntie? I do hope not.
Cut your Mum some slack. Whatever decision she made, consciously or not, can't be changed and don't let it come between you. Families are precious.