Italicised, for reference!
People may experience:
Behavioural: social isolation, disorganised behaviour, aggression, agitation, compulsive behaviour, excitability, hostility, repetitive movements, self-harm, or lack of restraint
Cognitive: thought disorder, delusion, amnesia, belief that an ordinary event has special and personal meaning, belief that thoughts aren't one's own, disorientation, memory loss, mental confusion, slowness in activity, or false belief of superiority
Mood: anger, anxiety, apathy, feeling detached from self, general discontent, loss of interest or pleasure in activities, elevated mood, or inappropriate emotional response
Psychological: hallucination, paranoia, hearing voices, depression, fear, persecutory delusion, or religious delusion
Speech: circumstantial speech, incoherent speech, rapid and frenzied speaking, or speech disorder
Also common: fatigue, impaired motor coordination, or lack of emotional response