How to get mom in NH to ask for help?

My mother, who had vascular dementia, also wouldn't ask for help and then when she would, she would be distraught about it because she felt bad asking someone to do something for her. She'd apologize and sometimes even cry about it. She would also let who ever she asked know how much she appreciated it. Sometimes I think it is just the nature of the person. I have that part of her and also hate asking someone for help! I don't want to bother them and I think that was her too. I will say this, she certainly didn't mind asking me for help!! Family dynamics I guess. The bad thing, towards the end, she actually forgot she had a call button and couldn't ask for help.
I see this as just the nature of the disease. What's up is not necessarily now down, but twisted all over the place!

Sometimes a person doesn't want an 'answer' to their problem. Then they will have to stop complaining. That's the conclusion I've drawn with my own mother who does similar things to what your mother is doing. For no good reason. Then complains bitterly to me that 'nothing is being done' for her. Because she does NOT ask. For what it's worth, I haven't been able to 'fix' this little problem for the past 5+ years my mother has been living in an ALF and now Memory Care, so I've stopped trying. If she wants something badly enough, she WILL ask, or she will go without. It's just that simple.