I mentioned in another comment this has happened to me before. Actually, at least three times I remember, twice when I was a kid and then once a bit over a deca

I mentioned in another comment this has happened to me before. Actually, at least three times I remember, twice when I was a kid and then once a bit over a decade ago. The "we" here is overstated. This kid received advice from an athletic trainer at his high school and a general practice PCP. You really need to be seeing a specialist in brain injuries. The last time I got a mTBI, it was actually reasonably bad and I could not even stand up without disorientation for nearly a month, but the treatment was absolutely not "go home and a rest." This happened while I was still in the Army, so sure, you can expect a specialized TBI clinic for presumably the employer second-most likely to results in TBIs behind the American NFL is going to know what they're doing better than a family practice dude who finished med school 30 years ago, can't possibly read the latest research from every possible sub-specialty, and mostly puts bandaids on and takes your blood pressure. Such is the state of healthcare, though. Physicians are not wizards. You can't expect one person to know everything. The PCP probably should have referred him to a specialist, but barring that, you need to insist on seeing one yourself. Unfortunately, a kid isn't going to know that, so parents, please do the same for your kids. As for the actual protocol I went through, it was retest weekly, continue going to work and running and what not, but don't play any sports, avoid the motorpool, light duty in the office instead, and I was barred from driving until I could pass all the tests, which took four weeks.