My biggest point here is that a concussion may occur with no obvious symptoms at the time of the injury AND that even a neck injury (without a head injury) may cause a concussion. The result of any concussion includes changes in the brain’s overall function leading to imbalances which can impair anything from muscle tone and coordination to mood to memory. I have just completed my diplomate in functional neurology and can answer more questions if you have any concerns. The treatments are often very simple exercises yet profoundly impact brain health!