If you were to ask my mother, everything about me is rapid onset. What she ignored is, when I was younger, I complained about things, but she'd tell me to shut up.

Rapid onset gender dysphoria is like saying a person "turned gay". My mother had a friend who said that she had a friend who turned gay because his wife died and he decided to find another partner, but his wife was irreplaceable, but the reality I'd say, was that he genuinely loved his wife, but was suppressing his homosexuality, and then after his wife died, he embraced it.