Low blood pressure can result in reduced blood flow and
circulation into the brain, with poor brain function. The usual symptom of
dangerously low blood pressure (hypotension) is a depressed level of
consciousness—someone acting sleepy or “out of it.”
Hallucinations are not a “typical” symptom of low blood
pressure. However, I wouldn’t rule it out as a possibility in rare cases. It
would be important to look for something else causing both the low blood
pressure and the hallucinations, like a toxic drug effect, or dehydration
causing delirium in an older person.
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