How to use "troubled" in a sentence

He was proud of having helped to bring her happiness with Marius, but another thing troubled his soul: the fact that nobody, not even Cosette, knew the truth about him

"What's wrong?" he demanded at once, looking around at their troubled faces.

I was not troubled by the sea's unhappy music.

There was no need for Maxim to look so white and troubled.

If this was what Danny had read before going to bed at night, how had he been able to sleep so well? He'd always been a deep, unmoving sleeper, never troubled by bad dreams.

They have told me since that I was singing a crazy song about 'The Last Man Left Alive! The Last Man Left Alive!' Although they were troubled with their own affairs, these people were very helpful to me