Collocations for disturbed - adj.

be, seem
become

deeply, highly, seriously, severely, very
Many of our patients are severely disturbed.

behaviourally/behaviorally, emotionally, mentally, psychologically
emotionally disturbed children

be, feel
become

deeply, greatly, profoundly, very
quite, rather
a little, slightly, etc.
vaguely (esp. AmE)

by
I felt vaguely disturbed by the incident.

Disturbed is used with these nouns:
adolescent, sleep