'Troubled' in the Bible

In the second year of the reign of Nebuchadnezzar, Nebuchadnezzar dreamed dreams; and his spirit was troubled, and his sleep went from him.

The king said to them, I have dreamed a dream, and my spirit is troubled to know the dream.

I saw a dream which made me afraid; and the thoughts on my bed and the visions of my head troubled me.

Then Daniel, whose name was Belteshazzar, was stricken mute for a while, and his thoughts troubled him. The king answered, Belteshazzar, don't let the dream, or the interpretation, trouble you. Belteshazzar answered, My lord, the dream be to those who hate you, and its interpretation to your adversaries.

Then the king's face was changed in him, and his thoughts troubled him; and the joints of his thighs were loosened, and his knees struck one against another.

Then was king Belshazzar greatly troubled, and his face was changed in him, and his lords were perplexed.

As for me, Daniel, my spirit was grieved in the midst of my body, and the visions of my head troubled me.

Here is the end of the matter. As for me, Daniel, my thoughts much troubled me, and my face was changed in me: but I kept the matter in my heart.

Know therefore and discern, that from the going forth of the commandment to restore and to build Jerusalem to the Anointed One, the prince, shall be seven weeks, and sixty-two weeks: it shall be built again, with street and moat, even in troubled times.