We suspect DD age 15 has ADHD, though finding a psychologist to assess her is proving challenging.
Much of what has been listed here is familiar to me.
Hyperfocus followed by complete abstention (art, cross stitch, her Nintendo)
Urge to info dump / talk at me, acknowledging she doesn't need my interaction during it.
Black and white thinking / anxiety eg about changes to routine at school, inset days and trips especially.
Fast and sometimes inaudible when speaking.
Intense but challenging friendships; the wider friendship group are all ND in some regard.
Likes the academic side of school and the teachers, easily annoyed by the other kids who sadly all know how to get a reaction out of her.
Excellent in maths and computer science, less so in English. Articulating her thoughts in writing is a real challenge for her.
Needs a task buddy for routine tasks like room tidying, showering.