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

Bipolar disorder

Delirium tremens

Parkinson's disease

Grief (yes, sadly)

Migraines

Alcohol withdrawal

⁉️sources from my experiences and internet research ⁉️

Infection

Brain Tumors

Withdrawal from benzodiazepines

Affective disorders

Stress

Head injury

Alzheimer's disease,

Charles Bonnet syndrome

Seizures

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

Fever

Pharmaceutical drug (abuse or side effects)

PTSD

Hallucinogen use

Alcohol

Dementia with Lewy bodies

Sleep disorders

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

Narcolepsy

Mental disorder

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