Early stages of concussion (<2wks)

What to expect, what helps, and what to avoid

The first two weeks after a concussion are often confusing. Symptoms can fluctuate, advice can feel contradictory, and it’s hard to know what’s normal versus concerning. This page explains what typically happens in the early stage, what supports recovery, and when to seek further help.

 

What this stage is about

 

The early stage of concussion is primarily a period of:

  • medical safety

  • symptom monitoring

  • gentle recovery, not rapid improvement

 

The brain is adjusting to a sudden functional disruption. During this time, symptoms can be very real—even when scans are normal—and they often change from day to day.

 

Common symptoms in the first 1–2 weeks

 

People may experience:

  • headache or head pressure

  • fatigue and need for more rest

  • dizziness or nausea

  • sensitivity to light or noise

  • brain fog or slowed thinking

  • difficulty concentrating

  • irritability or emotional ups and downs

  • sleep disruption

 

Not everyone experiences all symptoms, and the intensity can vary widely.

 

Symptom fluctuation is normal

 

One of the most unsettling features of early concussion is variability.

You may notice:

  • a “good” day followed by a worse day

  • symptoms that appear later in the day

  • new symptoms emerging as others fade

 

This does not usually mean the injury is worsening. It reflects the brain’s temporary difficulty regulating energy and sensory input.

 

Why rest alone is not enough

 

In the first few days, rest is important. However, prolonged or complete rest beyond the very early period can slow recovery.

Too much rest can:

  • increase fatigue

  • disrupt sleep

  • lower tolerance for activity

  • increase anxiety and symptom monitoring

 

Recovery is best supported by relative rest—a balance of rest and gentle activity that does not significantly worsen symptoms.

 

What “gentle activity” means

 

Gentle activity may include:

  • light walking

  • simple daily tasks

  • short periods of screen use if tolerated

  • brief cognitive tasks with breaks

 

Activity should:

  • stay below symptom flare thresholds

  • be stopped or modified if symptoms worsen significantly

  • gradually increase as tolerated

 

Avoid “pushing through” symptoms, but also avoid complete inactivity.

 

Thinking and concentration early on

 

In the first two weeks:

  • thinking may feel slower or less clear

  • concentration may be limited

  • multitasking is often difficult

 

This does not mean permanent cognitive damage. Early cognitive symptoms are common and often improve as the brain stabilises.

Formal cognitive testing is usually not helpful at this stage, as performance can be unreliable and misleading.

 

Emotional changes in the early stage

 

Emotional changes are common and often reactive.

People may feel:

  • frustrated or tearful

  • anxious about symptoms

  • overwhelmed by uncertainty

 

These responses are understandable and often improve with:

  • clear information

  • reassurance about the recovery process

  • predictable routines

 

 

Sleep in the early stage

 

Sleep may be:

  • longer than usual

  • more fragmented

  • unrefreshing

 

While extra sleep is often needed early on, irregular sleep patterns or excessive daytime sleeping can interfere with recovery. Gentle regulation of sleep–wake routines is usually helpful.

 

Red flags: when to seek urgent medical care

 

Seek immediate medical attention if you experience:

  • worsening or severe headache

  • repeated vomiting

  • increasing confusion or drowsiness

  • new weakness, numbness, or speech difficulties

  • seizures

  • unusual behaviour changes

 

These are uncommon, but important to monitor for in the early stage.

 

Who should be guiding care at this stage

 

In the first two weeks, care is usually best coordinated by:

  • your GP

  • emergency or urgent care services if needed

  • sports or rehabilitation physicians (where relevant)

  • physiotherapists experienced in concussion management

 

This stage focuses on safety, symptom monitoring, and early recovery guidance.

 

Why specialist cognitive assessment is usually delayed

 

During the first two weeks:

  • symptoms are still evolving

  • fatigue and stress can distort testing results

  • early testing can increase anxiety

 

For most people, targeted cognitive assessment is more useful after the early recovery phase, if symptoms persist or recovery stalls.

 

What helps most in the early stage

 

Helpful strategies often include:

  • clear, calm information about concussion

  • balanced rest and gentle activity

  • pacing physical and mental effort

  • maintaining regular sleep routines

  • avoiding alcohol and high-risk activities

  • reducing unnecessary screen exposure (without complete avoidance)

 

The aim is stability—not pushing for rapid improvement.

 

When to consider next steps

 

Many people notice steady improvement over the first few weeks.

You may want to consider further support if:

  • symptoms persist beyond 2–4 weeks

  • thinking, fatigue, or mood are not improving

  • return to work or study feels difficult or uncertain

  • symptoms worsen with increasing activity

 

At that point, assessment focused on recovery and reintegration may be helpful.

 

A reassuring note

 

Most people recover well from concussion. Early symptoms can feel intense and unpredictable, but they are often part of a normal recovery process.

Understanding what to expect—and what not to rush—can reduce fear and support a smoother recovery.

If you’re unsure how your recovery is progressing or what the next step should be, we’re happy to help you think through your options at the appropriate time.