If you read more of the concussion information on the Mayo Clinic web site, you will find a lot of it to be out of date. There is no uniform definition of PCS but most consider it to be when symptoms last more than a month or so. Studies show that the concussions that have symptoms beyond the first few days usually start to show improvement at 12-14 days.

As lightrail said, it does not matter what the time limit for PCS is. It does not change how one would get best recovery results. Statistics show that about 15% of diagnosed concussions will have prolonged symptoms that last 6 weeks to a year or longer. This does not take into account the many concussions that are never diagnosed by a doctor.

Do you have insurance? If so you may want to seek out a physiatrist. Seen several very positive post from people who have had them help manage their care.

Hope you feel better soon. Tell your friends to search out You look great on you tube, it will help them understand. Your really good friends will understand. All the rest will be posers who say they are but do not mean it. Being a true friend requires commitment and understanding when it is hard to do so.