Hey, Frances! I'm so sorry that you, your mom and your dad have to go through this. I know what it's like to watch your mom cry and be unhappy. It doesn't make for a very good childhood or loving memories.
You're mom is going to get very sick if she continues the way she is. I'm wondering if she's trying to avoid something or someone? Keeping herself so busy may be a way of keeping her from feeling or coming to terms with something troubling.
Kitt is right, you and your dad need to do something quickly. I hope I'm not scaring you. If your mother loves you as much as you obviously love her, she will get help. Many women feel they need to be Superwoman and aren't sure how to stop. You could even read these posts on here to her and see how she feels.
I'll be thinking about
you, Sweetie, and I hope all slows down soon. Don't give up!
40 mg. Prozac, Ativan as needed.