| http://www.w3.org/ns/prov#value | - Concussion may present with the symptoms you are experiencing such as loss of consciousness, confusion, headache, nausea or vomiting, blurred vision, loss of short-term memory or perseverating. (ref: http://www.emedicinehealth.com/concussion/page2_em.htm#Concussion%20Symptoms) The symptoms may resolve after some time or may persists.
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