Brainstem bleeding is a sudden burst artery deep in the bridge between brain and spine. Because this area runs breathing, eye move, and face power, even a pea-size bleed strikes like lightning and can grow fast. The first blow is an instant thunderclap headache felt at the back of the head. People call it “the worst kick ever” and it often brings vomiting that shoots out without warning. Both eyes go weird together. The pupils may shrink to pin-points, become unequal, or bounce side-to-side. Trying to look left leaves one eye stuck in the middle. Face and tongue drop on... Learn more