Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 02.07.2025 16:23

Narcolepsy
Grief (yes, sadly)
Alcohol withdrawal
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⁉️sources from my experiences and internet research ⁉️
Delirium tremens
Pharmaceutical drug (abuse or side effects)
Fever
Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
Sleep disorders
Brain Tumors
Migraines
Alcohol
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Hallucinogen use
Head injury
Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:
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Infection
Stress
Seizures
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Affective disorders
Charles Bonnet syndrome
Parkinson's disease
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Mental disorder
Bipolar disorder
Dementia with Lewy bodies
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Alzheimer's disease,
PTSD
Withdrawal from benzodiazepines