My Gramma called it a conniption fit.
A sound thrashing with a switch usually followed.
Schizophrenia is not a mere “conniption fit”. It is driven by deeper and darker forces, a malevolent intent to destroy what you cannot possess or control. And even when some control is attained, only the destruction of the object under control will assure that nobody, NOBODY, can ever wrest control back.
This is “progressive”, I suppose. But then, cancer is also progressive, unless halted and driven into remission or excised altogether.