If you just Googled this — you are not alone. “Is this normal?” is the most common question people ask after a concussion. The answer, for most of what you’re experiencing, is probably yes.
Concussions affect every part of how your brain works — thinking, emotions, sleep, senses, energy. The symptoms are wide-ranging and often alarming, especially if nobody told you what to expect. Most of these symptoms are a normal part of recovery, even when they don’t feel normal at all.
Recovery timelines vary. Most concussions resolve within weeks. Some take months. Post-concussion syndrome (PCS) is when symptoms persist beyond the typical recovery window. It’s frustrating, but it’s not unusual, and most people with PCS do eventually recover.
Headaches are the single most common post-concussion symptom. They can be constant, come in waves, or get triggered by screens, noise, or mental effort. Having a headache weeks or even months after a concussion is extremely common.
Sudden severe headache ("worst headache of your life"), headache with vomiting, or headache that gets dramatically worse over days rather than fluctuating.
Feeling like you're thinking through mud. Losing words mid-sentence. Reading the same paragraph three times. Forgetting why you walked into a room. This is your brain healing — it's using energy to repair itself, which leaves less for normal thinking.
Sudden confusion or disorientation that's clearly worse than your baseline, especially days or weeks after the injury.
Needing to nap after a 20-minute conversation. Feeling wiped out by a trip to the grocery store. Your brain is working overtime to do things that used to be automatic. The fatigue is real and it's not laziness.
Fatigue is rarely dangerous on its own, but if you can't stay awake or are increasingly hard to rouse, seek emergency care.
Fluorescent lights feel like staring at the sun. Normal conversation volume feels too loud. Sunglasses indoors. This is extremely common and usually improves gradually.
These are almost always normal PCS symptoms. They can persist for months and still be part of expected recovery.
Feeling anxious, irritable, or weepy — often about things that never bothered you before. This is partly neurological (your brain's emotional regulation is affected) and partly situational (concussions are scary and life-disrupting). You're not going crazy.
Thoughts of self-harm or suicide. Please reach out to the 988 Suicide and Crisis Lifeline (call or text 988) if you're in crisis.
Forgetting appointments. Losing track of conversations. Not remembering what you had for breakfast. Short-term memory takes a hit during recovery. Many people find that writing things down or using reminders helps enormously.
Losing memories from before the injury (retrograde amnesia beyond the injury itself) or significant gaps in awareness.
Sleeping 12+ hours and still being tired. Or barely sleeping at all. Or both in the same week. Concussions mess with sleep regulation. This is frustrating but expected.
Sleep problems alone are rarely dangerous, but mention them to your doctor — good sleep is crucial for brain healing.
Many people describe a strange sense of disconnection — you look the same, but something is off. You can't do what you used to do as fast, as well, or for as long. This is real. It has a name (depersonalization/derealization in some cases). And it gets better.
If this feeling is intensifying over time rather than gradually improving, mention it to your doctor.
You look fine. Your MRI was normal. People expect you to be better by now. But you’re struggling with things that used to be easy, and nobody around you can see why.
This gap — between how you look and how you feel — is one of the hardest parts of concussion recovery. It’s not in your head (well, technically it is, but not the way people mean). Your brain is injured and it’s healing. The invisible nature of the injury doesn’t make it less real.
Luci is an AI companion designed specifically for people recovering from concussions. It helps you track symptoms, manage your day, prepare for doctor visits, and make sense of what you’re going through — all through simple conversation, designed for a brain that’s working at reduced capacity.
When you tell Luci “I had a terrible headache after the grocery store,” it doesn’t just log it. It helps you see that grocery stores have been a trigger for two weeks, and suggests bringing that pattern to your next appointment.
Try Luci Free — 14-Day TrialNo credit card required. Voice-first, designed for brain fog.