Janie!
I think your daughter has PCOS! The hair loss on the top of the head is normal for a woman with PCOS. Please see my other post for the right tests to get. Also, just google PCOS. There is a great book on how to deal with this.
1. Don't panic.
2. See a gynecologist preferably one that is familiar with the syndrome.
3. They will probably prescribe metformin or glucophage.
4. She will be advised to go on a low carbohydrate diet to lower her insulin levels.
5. There are some things she can take. I'm not a doctor. But, this is what i take: saw palmetto (testosterone blocker otc often used by men to lower testosterone levels for their prostate) evening primrose oil (capsule, helps with blood sugar/feminizes) cardio exercise (helps with insulin receptors.)
6. Get her the laser hair removal if you can afford it, this is so important to her sense of self. Get her a hair piece too. That matters. Walking past a mirror and seeing what looks like a dude looking back at you is demoralizing and extremely depressing. I had the hair thinning at 16 years old. The doctors told me that my hair was ok. I used to have two thick pony tails that I couldn't hold with each hand. I'm down to a 1/4 of that.
She may also get acne and
NO SOY! She is probably estrogen dominant. I am. We estrogen dominant girls produce excess estrogen and absorb too much also. The excess is converted into testosterone.
Excess insulin behaves like testosterone. That is what creates the symptoms.
The insulin is no longer being taken into her cells. The receptors are not working right anymore. Thats why going on a low carb diet has been so effective for so many of us. We stop giving our bodies foods that require insulin to absorb.
The other problem with insulin is that it is a storage hormone. When it is in the blood stream it shuttles food into fat cells. She may be fighting fat that is around her middle. Poor thing.