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 15:06

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