bid-ness, yo

Why is it any of my mother's business if and when I call insurance people and doctors go to the DMV? And why is it her job to tell me if and when I should have done these things? And why, at age 25, do I find myself having to explain my perfectly valid reasons for rearranging the dates, times, and priorities of my errands to my mother? This is stupid. I know it's her weird neurotic thing, not mine, but it is unbelievably unnerving and annoying and I just have to avoid talking to her whenever possible until she gets over whatever is making her get all up in my bid-ness.