I agree, it's not the hormones themselves, but perhaps a reaction to them.
There's three things I can see here as possibilities, but remember, I'm not a doctor. Numbered from most likely to least likely.
1: The hormones are too high for her, and she can't handle it
2: Somewhere, someone along the line didn't notice that transition may not be right for her
3: She's milking it. She's using suicide as an excuse to try and get her way
3a: She's scared out of her wits and is using the suicide to try and get people to pay attention to her.