That was when Mary decided to relieve her mind of a troubling thought.
Gosh Alex, didn't you realize that all this silence was already troubling me?
Of course he would feel responsible for working it out and not troubling her with it.
Her erotic dreams were proof that he was becoming more than a friend to her, and that thought was troubling - both from the standpoint of her goals, and the fact that she was setting herself up for rejection.
I had no idea it was troubling you.
How would you define troubling? Add your definition here.