why couldnt they test her? what type of people did she see? does she see a psychiatrist? Or a psychologist? Does she have a diagnosis now? I think that for the sake of your daughter you need to seek out a transpersonal psychologist.

http://www.mdani.demon.co.uk/trans/tranintro.htm

Even though she is 23, it's never too late. You should also read this : http://www.amazon.com/Gift-Dyslexia-.../dp/039952293X