Which of these is not a sign of brain concussion? unequal pupil size increased appetite deafness restlessness?

I think the answer is increase appetite. A brain concussion is a mild traumatic injury which may occur after an impact on the head or after a whiplash-type injury that causes the head and brain to shake quickly back and forth. It is the most common and least serious type of traumatic brain injury. Its symptoms include headache, clumsiness, confusion, sensitivity to light and noise, among others.