Can certain diseases cause paranoia similar to that seen in...

Charles Bonnet syndrome

Infection

Head injury

Fever

Sleep disorders

Delirium tremens

Bipolar disorder

Narcolepsy

Migraines

Withdrawal from benzodiazepines

Pharmaceutical drug (abuse or side effects)

Alcohol

Affective disorders

Mental disorder

Parkinson's disease

Dementia with Lewy bodies

Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).

Grief (yes, sadly)

Alcohol withdrawal

Seizures

PTSD

Stress

Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:

Hallucinogen use

Alzheimer's disease,

⁉️sources from my experiences and internet research ⁉️

Brain Tumors

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