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

Grief (yes, sadly)

Narcolepsy

Infection

Parkinson's disease

Fever

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

Sleep disorders

Mental disorder

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

Alcohol

⁉️sources from my experiences and internet research ⁉️

Brain Tumors

Head injury

Alzheimer's disease,

Charles Bonnet syndrome

Delirium tremens

Pharmaceutical drug (abuse or side effects)

Seizures

Hallucinogen use

Dementia with Lewy bodies

Withdrawal from benzodiazepines

Affective disorders

Bipolar disorder

Alcohol withdrawal

Stress

PTSD

Migraines

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