Hello michaeaaron: Thank you for bringing your concern here to PC. I see this is your first post. So... welcome to Psych Central.

We here on PC cannot offer mental health diagnoses. Plus I'm not a mental health professional. So I can't suggest to you what type of illness your family member may be struggling with. However based on what you wrote it sounds as though, whatever your family member's diagnosis might be, she is experiencing delusions. Here are links to 7 articles, from Psych Central's archives, that talk about what delusions are & how to cope with someone who has them plus one article on how to persuade your loved one to seek professional help:

10 Things You Should Know About Delusions | Caregivers, Family & Friends

10 Things You Should Do With Someone Who Suffers Delusions | Caregivers, Family & Friends

8 Ways To Cope With Someone Who Has Delusions | Caregivers, Family & Friends

Coping With Your Loved One's Delusions | Caregivers, Family & Friends

Delusional Disorder: 8 Ways To Communicate Without Fighting | Caregivers, Family & Friends

https://blogs.psychcentral.com/careg...ional-beliefs/

https://blogs.psychcentral.com/careg...-to-delusions/

https://psychcentral.com/blog/how-to...essional-help/

I hope you find PC to be of benefit.