Words, I think, hurt the most. I'm really sorry that your mother says such terrible things to you. Have you tried discussing her behaviour with her? I know that would be unbearable, but it's something to think about. I wish I could tell you what to do in this situation, but I think I'd be the one to endure the abuse just because she was my mother, but then again that may not be the best course of action to take.

I guess the best course of action to take is to tell her how you're feeling about what she says and go from there. If she isn't responsive or only comes back with more attacks, I'd suggest staying away...at least for a little while.