Weakness or numbness in one side of the face

it happens when a bulging aneurysm presses one of the facial nerves. It may either result in numbness in some parts of the face or even paralysis. It is not among the typical symptoms. Nonetheless, research shows that it may be present in about 20% of all cases of a brain aneurysm.
It is common to confuse this symptom with stroke as many may have a severe headache too. However, unlike stroke progress would be slow. It means that facial numbness or paralysis may occur over a prolonged period. Whereas in stroke, it may happen abruptly, and the untreated person may get worse very quickly.