Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 23.06.2025 17:05

Hallucinogen use
Alcohol
Parkinson's disease
I always feel very tired after I do some exercises, even after a night's sleep. What's the problem?
Sleep disorders
Alcohol withdrawal
Bipolar disorder
Pharmaceutical drug (abuse or side effects)
Infection
Dementia with Lewy bodies
Mental disorder
Head injury
Affective disorders
Brain Tumors
Grief (yes, sadly)
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
Fever
⁉️sources from my experiences and internet research ⁉️
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Narcolepsy
Seizures
Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
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PTSD
Stress
Withdrawal from benzodiazepines
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Alzheimer's disease,
Migraines
Delirium tremens