Agitation or combative behavior
An inability to stay focused
Anxiety, fear or paranoia
Apathy
Decreased responsiveness
Disorientation
Easy distraction
Euphoria
Getting stuck on an idea
Hallucinations
Irritability or anger
Laziness
Lethargy
Memory problem
Mood swings
Personality changes
Restlessness
Speaking or reading difficulty
Withdrawn activities
Alcohol or drug abuse or withdrawal
Clinical Psychologist
Psychiatrist