feeling of needing to vomit

stop working in order to relax or to recover strength

experienced concussion symptoms for weeks or months after

sensation of sinning and losing balance

drugs that relieve pain

dizziness that last months after the concussion

state of mental confusion

symptoms last less than 15 minutes

causes brain injuries

experiencing unease or nervousness

person loses conciousness

memory disorders, personality changes, impaired reasoning

extreme tiredness

symptoms last longer than 15 minutes no loss of conciousness

mental health disorder characterized by feeling worried, anxious, or fear strong enough to interfere with daily life