Concussions can occur due to impact to the head from car accidents, falls, and sports impact injuries (to name a few). Some common signs and symptoms of concussions are difficulty focusing or concentrating, Nausea, vomiting, headache, fatigue and sleep disturbances. Some experience a loss of memory, but not in all cases. Concussions occurring at an alarming rate in sports these days and most recover fully with adequate rest and interventions, however some have symptoms that linger. Physical Therapy can help with getting you back up and running.