'Disturbed' in the Bible

In the second year of his reign Nebuchadnezzar had many dreams. His mind was disturbed and he suffered from insomnia.

"Then Daniel, whose name [was] Belteshazzar, was distressed {for some time}, and his thoughts disturbed him. The king answered and he said, 'Belteshazzar, let the dream and its explanation not disturb you.' Belteshazzar answered and said, 'My lord, [may] the dream and its explanation [be] for [those who] hate you and for your enemies.

I, Daniel, was overcome and lay sick for days. Then I got up and went about the king’s business. I was greatly disturbed by the vision and could not understand it.