I’m not particularly opposed to a sex change operation for her, she is. The thought of it freaks her out, probably because we are Christians and she was raised Christian and truly knows and loves Jesus. But that doesn’t seem to make this cross that much easier to bear; I tell you it is just about shear hell on earth for her, and me as her mother. Plus I hear that people who have it done aren’t necessarily happier and they don’t feel quite right even still; maybe I’ve heard wrong. Yes, we need to grab onto the Lord and, I like the way the poster put it, perhaps “until we hear Him breathing”, it is so so very hard though and the pain is ongoing. It abates at times, otherwise we’d be dead from it, but it always returns. The calling, however is hers, and only He can make it apparent to her.
Also some people are born intersex, and sometimes it's not physically apparent.
http://en.wikipedia.org/wiki/Intersex
You might want to get your daughter to a therapist who is familiar with gender issues.
If nothing else works, and she is suicidal (for instance), her being prescribed and taking testosterone alone may be enough.