My mother has it as well. On the other hand, she also has some mental problems, and my sister and I are starting to wonder if she's just seeking attention. Mom isn't always a good and compliant patient when it comes to cutting things out of her diet (like alcohol). What she says she does, and what she actually does are often two different things.

Rant over.

Badger - does your mother also have trouble with tolerating exposure to the sun? I've heard my mom complain about the constant dry mouth, and she does drink a LOT of water - could float a boat I think in her consumption. But she says she has trouble with the sun, and she lives in sunny central Texas.