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

Fever

Grief (yes, sadly)

Mental disorder

Withdrawal from benzodiazepines

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

Stress

Bipolar disorder

Seizures

Narcolepsy

Infection

⁉️sources from my experiences and internet research ⁉️

Head injury

Alcohol

Migraines

Alcohol withdrawal

Charles Bonnet syndrome

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

Alzheimer's disease,

Delirium tremens

Dementia with Lewy bodies

Affective disorders

Hallucinogen use

PTSD

Brain Tumors

Pharmaceutical drug (abuse or side effects)

Sleep disorders

Parkinson's disease

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