Since the OP sufferend concussion injuries I would definitely recommend he get an attorney involved on his behalf. Treatment of concussion injuries are not like a sprained knee, particularly if the person has had a previous concussion. Symptoms can linger for months or even years, and you need to protect yourself from potential future medical costs associated with it, and I don't believe that anyone but an attorney is capable of negotiating a settlement that can offer you this protection. A concussion is a mild traumatic brain injury, and you'd be better off with a broken bone that will heal to full or almost full function, because your brain can't, and won't.
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