A concussion is an injury best defined as a complex pathophysiological process affecting the brain, induced by biomechanical forces.  You do not have to play a sport, lose consciousness  or hit your head hard to sustain a concussion and have symptoms, which typically include any combination of the following:

Physical Symptoms

• Headache
• Nausea
• Vomiting
• Balance problems
• Fatigue
• Sensitivity to light
• Numbness/tingling
• Dazed
• Stunned

Cognitive Symptoms

Ankle Sprains

Anatomy, Pathology, and Classification of Ankle Sprains

Ankle Anatomy
GradeSigns and symptoms
  • Stretched anterior talofibular(ATFL) and calcaneofibular ligaments (CFL)
  • Mild tenderness and swelling