She has health problems - walking and a lot of pain - and she is very depressed. She is supposed to come to Thanksgiving dinner tomorrow with lots of people but has no desire to fix herself up. She goes out shopping like this - she says everyone knows she is sick and won't care but that I'm ashamed of her and have upset her. She takes everything very personally. Now, she says she isn't coming to Thanksgiving dinner because I am ashamed of her. What do I do?
Acknowledge what she tells you and bring Christmas/Thanksgiving dinner to her.
Off the subject re: Christmas gift ideas: Someone gave this input from last year and I think it bears repeating. Appeal to their senses: A book perhaps in large print edition (Abe's books.com is a wonderful site); a homemade blanket; a small potpourri gift that you can spray with lavendar/or cinnamon apple; a small daily flip calendar (I.e. Stormie O'Martian's is a good deal @ Abe's Books; dark chocolates (goes w/o saying); etc. Soft & frilly socks; a nice CD. Our family focused on the senses last year and it was a blessing for mom.
Your mother has pain, impairment, diagnosed depression, and she recently lost a pet. She does not need to be reminded that she looks feeble. It is not a compliment to be told she could look better. If you want to compliment her, compliment her. That means say good things about her. Leave out the negatives. She has more negatives than she can handle right in her own mind.
You know that she is going to latch on to any negative -- you tell us that -- so why do you keep giving her negatives to latch on to? What you deal with is very predictable, especially taking the depression into account. It is not productive to keep behaving in the same way toward your mother and expecting different results.
I certainly believe that you are sincere in your wish to do what is good for your mother. I think your approach needs a little polishing, and you need to account for her depression as much as you do her other health problems.
I'm with Jeanne. My mother, when depressed, tried to flip the script on me too. "I know I bother you," "You don't want to be seen with me," "I don't know what I did for you to treat me like ....," blah, blah, blah. Doc gave her Prozac; didn't work.
Unless she, you or a shrink identify the root of what's missing in her life there isn't a pill in the world that'll make her feel better. And she'll continue looking for ways to justify her behavior, letting herself go, and making everybody else miserable.
I once told Mom "If I were ashamed of you, you'd be tucked under a rock somewhere. But you're in my house. How do you explain that? Am I really ashamed or is there something you're not telling me? Tell me what hurts and we'll do something about it."
She denied anything was wrong, so I asked her why the drama. "I'm getting old, I look like a porker. ... I used to turn heads back then." To make a long story short, I took her to my nephew's salon. Hours later, she was a vixen (push up bra, hair, makeup, and the works). I asked her how she felt, and she said "Hot."
... What on the surface seemed an annoying guilt trip, was actually a cry out for help.
I suspect that she may have also been looking for a scapegoat. Perhaps she had doubts about being able to function in a social situation with lots of people around and being mad at you gives her an out. She doesn't have to take responsibility for a careful decision (difficult when you're depressed) but can tell her self she is forced into this decision.
I'd call Mom again. Briefly explain once again that you don't care how she looks and it isn't important to "fix up" if she isn't feeling up to it. But that if she prefers to stay home you will be bringing her the complete meal. Ask whether she'd like for you to bring it at the end of the party, or the next day. Tell her you'll reserve her piece of pie before the pie is served to anyone else and ask her what kind she wants (if there are choices).
It is very hard for people to make decisions when they are depressed. Whatever she is going to do, you don't want it to muck up your relationship with you. Accept what she decides and support her in that decision. Don't turn this into a power struggle and don't get into arguments.
Is your mom being treated for depression?