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A headache with altered mental status (AMS) can be a sign of infection, bleeding, or a tumor. Vomiting without diarrhea can indicate increased brain pressure. Dehydration can also cause AMS.
Some causes of AMS include: Brain bleed, Brain tumor, Hepatic encephalopathy, Obstructive hydrocephalus, Seizure, and Stroke.
A stroke, also known as a cerebrovascular accident (CVA) or brain attack, occurs when blood flow to the brain is blocked or a blood vessel in the brain bursts. This can cause lasting brain damage, long-term disability, or even death.
There are two main types of stroke: Ischemic: Caused by a lack of blood flow Hemorrhagic: Caused by bleeding
Some people may have a temporary disruption of blood flow to the brain, known as a transient ischemic attack (TIA). A TIA doesn't cause lasting symptoms.
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