How can i know my babys brain is ok after a shake? is there any symptoms that will show, like pain?

Shaken Baby Syndrome: Can occur after 5 seconds of shaking. You may not see signs till brain swelling & subdural hematoma (bleeding) increase enough to put pressure on the brain with seizures, loss of consciousness, pale/ bluish skin, vomiting, stopping breathing, coma &/or death. Get to an er now! 'fess up about the shaking so doctors will look at the back of his eyes & order an MRI of his brain.