Hammy slam dunks, yes she does it yet again!!!
To the OP, I too worry about any genetic component as I have a daughter, but since I'm a psychiatric anomaly in my family, I'm hoping she'll continue swimming in the neuro-typical gene pool.
My own symptoms started as a teen and were dismissed as teen angst, but I knew all along that was bullshyt because I was very close to my friends and witnessed how our emotions operated on different levels, how my emotional responses seemed to be so much bigger, even when faced with identical circumstances...
Also I was a pretty smart kid and that always helps.
So my game plan is to trust my daughter if she's convinced something more than hormones is at play, and to help her accordingly...