Answer:
Cerebral aneurysm (also known as intracranial aneurysm).
Step-by-step explanation:
A cerebral aneurysm is a consequence of a dilatation of a brain artery. This dilatation can result in a rupture of such artery because its walls get weak during the inflammation and can therefore burst. When doing so, the blood scatter in the brain and can have serious consequences. One symptom of an intracranial aneurysm is the sudden appearance of a strong headache. It can also produce nausea, vision problems, and pain or weakness in an arm or leg and difficulties in understanding and speaking properly.