Patient History: A 44-year-old gentleman presents to ED with a severe headache. He said it came on quickly, within 30 seconds, and is at the back of his head. He reports feeling nauseated and 'unsteady'.

Physical Examination:  He has mild neck stiffness, nystagmus on the left and right gaze and is walking with a very unsteady, broad-based gate, wobbling from side-to-side. *This case is from Docplexus Editorial Team for educative purpose only Source: ProProfs Neurology Quiz