Hi toothfairy!

I join Rapt Reader in extending my warmest welcome. It must have been tough for you growing up, and I can see it's no easier now. The good thing is that many people here have experienced the same thing and will support you and understand you in a way no one else can.
Rapt Reader has already given you some great links. I hope you have the time to look at them, it's really helpful.
Does your mother have any insight into her disorder?
What aspect of her behaviour do you find the most difficult to live with?
Where would you like your relationship to go?
Keep posting! It really helps to know that you are far from alone. We're here for you.