is something wrong?; what's the matter?
Used to ask if someone is troubled or if something is amiss. Often appears as どうかしたの or どうかしましたか.
Is something wrong? You look pale.
He suddenly fell silent, as if something was the matter.
expression, noun-modifying (irregular)
Used prenominally in set phrases like どうかした拍子に or どうかしたはずみに, meaning 'by some chance' or 'on a mere impulse'. Not freely productive.
By some chance, I let the secret slip.
I met her by a mere coincidence.