Good days and bad days, months after a concussion
Tuesday was nearly normal. You cleared the inbox, held a conversation in a loud room, and went to bed thinking this might finally be behind you. By Thursday the fog was back, the lights in the grocery store were too much, and you snapped at someone over nothing.
If your head injury was recent, start with a doctor. Emergency care exists for a reason, and the first days after a head injury are not the time for anything else. If anyone has been knocked out, is vomiting, confused, or getting worse, call 911. And if your own symptoms are getting worse, or something new has started, that’s a call to your doctor now — not a pattern to wait out. This article is for later: weeks or months out, checked, cleared, and something still isn’t back.
The swing is the hard part
Most people expect the months after a concussion to run in one direction. What they describe instead is a swing: the fog that lifts and returns, light and noise that wear on you in a way they didn’t before, sleep that never fully recovered, and a shorter fuse than you used to have. On a good day most of it recedes. On a bad one it is all back at once, along with the sense that you’re working harder to do the same things.
The inconsistency is what makes it so hard to explain. The scans came back clean. You’ve been cleared. The people around you watched you manage on Tuesday, and so did you — which makes Thursday look like a choice, or like something you’re imagining. Plenty of people are told to wait it out at exactly this point.
Why it moves as a group
Post-concussion symptoms tend to cluster the same way attention, sleep, mood and mental fatigue cluster in everyone else: they’re outputs of a nervous system struggling to regulate. Read that way, a day when the fog, the noise and the short fuse all show up together is one problem with several outputs, not four separate ones.
Regulation is also a capacity that depletes and recovers, which is why an ordinary day can be manageable one week and not the next. Nothing about Thursday asked more than Tuesday did. What was available to meet it got smaller.
A good Tuesday isn’t a promise about Thursday, and a bad Thursday isn’t a verdict on Tuesday.
What tends to help
Stop grading yourself against the best day. Consistency is the wrong benchmark, and holding yourself to your own best day sets a standard the system cannot meet. Plan the week around the capacity you usually have, not the capacity you had once.
Lower the demand before it fails, not after. Leaving the loud room ten minutes early usually costs less than staying until it’s too much — the second one tends to take the evening with it.
Keep a plain record of the bad days — what the day before asked of you, how you slept — and take it to your doctor. A pattern on paper is easier to talk through than a feeling that something isn’t right. And if your doctor or your rehab team has told you to hold off on anything, follow them.
Keep your doctor in it
Being cleared isn’t the same as being finished with your doctor. Headaches that keep coming back, sleep that won’t settle and changes in mood are all things a doctor should hear about directly, and some of what sits underneath them is identified by testing rather than by inference. We can’t test for any of it, and neither can an article.
If you’re doing vestibular or vision rehab, keep doing it. Those are clinical therapies delivered by clinicians, and we don’t do either one.
Where LENS fits
People come to us months and sometimes years after the injury. LENS is routinely used alongside other care, and we’re glad to coordinate with providers you already trust. Physicians in Middle Tennessee do refer patients to us, but you don’t need a referral to call.
A session asks nothing of you — no exercises, no drills, nothing to practice between visits. Small sensors sit on the scalp, the system returns a brief, very low-energy feedback signal, and most people feel nothing at all. Sessions run about 30 minutes in a comfortable chair, and many clients read or simply rest.
Every visit opens with a structured check-in on how things are actually going — sleep, mood, focus, energy — so the good days and the bad days are both on the record, and the plan follows them rather than a template. The first visit is a recording of brain activity and a written plan you keep. It isn’t a medical assessment of your injury, and it isn’t a test you can fail.
The pages this one sits closest to.
LENS is a wellness service. It works alongside — never in place of — your doctor, therapist, or school supports.
Tell us about the bad days too. We’ll be straight with you.
Including the ones that are hard to explain. We don’t predict how it would go for anyone, and we’ll say plainly if LENS isn’t the right fit — on the phone, before you book anything.
If we don’t think LENS is right for you, we’ll tell you on the phone — before you ever book or pay for anything.
The call is free · No referral needed · HSA & FSA accepted