My mother used to be the exact same way...for YEARS I had to listen to it. "God, could I GET any fatter?" "*dramatic sigh* I remember when these jeans used to actually FIT!"
I just told her one day that if she was so damn fat and hated herself so much, the way I saw it, she had two options: Either kill herself and put us *all* out of our misery, or stop eating so much damn ice cream, put on a pair of sneakers, and go freaking work it off.
Haven't heard it since.
However, since your mom's weight gain is due to a medical condition, perhaps you should point out that it's not like she's your average run-of-the-mill lardass, and it's not entirely her fault, it's her medical condition, and since she *does* have a medical problem, it would perhaps be in her best interests all-around to maybe try to eat healthier and do as much exercise as she can comfortably do? Certainly can't hurt...
Suzanne: I never use catalogs. I'd rather go in the store and see all the salespeople groveling and sucking up to you.
Julia: Pardon me, I never knew they were so solicitous at the K-Mart.