complaining or criticizing

a nagging voice 抱怨声

used to describe an unpleasant feeling that continues for a long period of time

nagging doubts/pain 难以消除的疑虑／令人不得安宁的疼痛

complaining and criticizing

I got sick of her constant nagging. 我对她没完没了的抱怨感到厌烦。