Childhood anxiety is becoming more prevalent across Australia, with new forms of media and rising pressures on young people fuelling new sources of worry. While it’s completely normal and human to experience some anxiety, it can become a concern when it persists or starts affecting daily life.
For families, understanding anxiety in childhood, and learning to tell the difference between typical and disordered levels, is an important step towards finding the right network for your child. Our team in Sydney understands how sensitive and often confronting this process can be, especially when you’re unsure what signs to look for.
In this article, we’ll run through everything you need to know about childhood anxiety. Whether you’re already exploring professional support or simply trying to understand what anxiety looks like, HealthSync Care is here to help.
What is Anxiety?
Anxiety is the body’s natural response to situations that feel threatening, overwhelming or uncertain. This is often described as a “fight-or-flight” response, which is designed to protect us from perceived danger. However, while fear is an immediate response to present danger, anxiety usually involves being worried about something that may happen in the future. Some anxiety is a normal part of life. For example, some children may be anxious about starting a new school, meeting new people, going to sleepovers away from home or sitting an exam. Anxiety may be cause for concern when it becomes persistent, overwhelming, out of proportion to the situation, or begins to impact the child’s everyday life.
Common Causes of Anxiety in Children
There is generally no single cause of anxiety in childhood, and each child’s experience tends to be quite different. Anxiety can stem from a particular event or situation, but it can also develop without an obvious trigger. In some cases, a child’s emotional response or level of stress doesn’t always signify a diagnosable anxiety disorder.
Common experiences that contribute to anxiety:
- Stressful events (such as an illness, injury, or death in the family, or experiencing/witnessing a traumatic event)
- Large-scale news/social media (such as climate issues, natural disasters or other fearful events in the world)
- Major life changes (such as changing schools, parents separating or moving house)
- Social or family stress (such as peer rejection, or significant conflict and changes in the family)
- Events at school (such as bullying, friendship conflict, academic pressure or exams)
- Physical ailments (such as illness or injury)
It’s not always obvious when children develop strong feelings of anxiety, as some cases can emerge without any particular triggering event. If you think your child may be struggling with anxiety, it’s important to seek support early and reach out to a professional, such as a Psychologist or a Paediatrician, who can help provide appropriate strategies.
Anxiety Symptoms in Children
Children usually won’t explain feelings of anxiety through words, but instead presents through unpredictable changes in behaviour, emotions, or physical symptoms. For example, they may avoid certain situations, activities or places that trigger their nervousness, such as school or sporting events. They may also become excessively clingy towards parents or guardians. Sudden emotional outbursts and a constant need for reassurance are also common, offering only temporary relief from distress or nervousness.
Common behavioural symptoms include:
- Frequent feelings of worry or fear
- Avoiding everyday situations, activities or places
- Constant, sudden emotional outbursts or irritability
- Easily overwhelmed by changes or uncertainty
- Seeking frequent reassurance
- Significant trouble concentrating
- Overthinking or overplanning (perfectionism) for “what if” situations, or fear of making mistakes
These are some common behavioural symptoms to look out for, though they can vary from child to child depending on individual factors and external influences. In addition to behavioural changes, anxious children may also show some common physical symptoms.
Physical Symptoms of Childhood Anxiety
| Body System | Physical Symptoms |
| Digestive | Stomachaches, nausea, loss/change of appetite, diarrhea or constipation |
| Head | Headaches, dizziness, lightheadedness |
| Cardiovascular | Racing heart, chest tightness or pain |
| Respiratory | Shortness of breath, rapid breathing, feeling of choking |
| Muscular | Muscle tension, aches (especially neck/shoulders), trembling or shaking |
| Sleep | Difficulty falling asleep, nightmares, frequent waking, fatigue |
| Skin | Sweating, clammy hands, flushing or paling |
| Bladder | Frequent urination, bedwetting (in younger children) |
| General | Restlessness, fidgeting, being easily startled |
Children often won’t be able to say “I feel anxious”; instead, they may complain about physical symptoms as a way of indicating that something is wrong. If your child persistently complains of any physical symptoms, it could be an early indication that your child may be struggling with anxiety.
If symptoms persist or worsen, it’s also worth ruling out any underlying medical conditions with a paediatrician consultation, as the physical symptoms of anxiety can overlap with other conditions.
Understanding Childhood Anxiety Symptoms vs Common Childhood Fears
Childhood fears are a normal aspect of development, as their cognitive functions are still evolving. Children can often be afraid of things such as the dark, animals, loud noises, monsters or being separated from their parents. Naturally, many children’s fears can change or reduce over time as they grow and develop new skills to understand and manage the world around them.
However, fears can develop into anxiety disorders in children when they persist, become disproportionate to the actual situation or object they find fearful, or begin to affect their daily life.
Note: Having fears does not mean a child has an anxiety disorder. What matters is the level of distress they experience as a result of the fear and the impact of it on the child’s everyday functioning.
| Category | Fears | Anxiety |
| Origin (triggers and source) | Triggered by specific situation or objects (e.g. loud noises, the dark, monsters) | The fear is often internalised, intrusive, or disproportionate to situations (e.g. constant worry about health or school) |
| Duration/Intensity | Often reduces as child becomes more familiar with the situation or object | Lasts longer than normal fears even when there is no immediate threat. Can disrupt sleep, concentration or socialising |
| Behavioural Impact | Comforted by reassurance and support or can adapt as they get used to environments | Reassurance can provide temporary comfort but the worry returns. Can lead to avoidance of situations or places, clinginess, and behavioural outbursts |
Separation Anxiety in Children
Separation anxiety is a normal aspect of childhood development and usually peaks around 12 to 18 months. Infants haven’t yet developed the understanding that when their primary caregiver leaves, they will return. Children typically outgrow this within a few months as this understanding, confidence and independence develops.
However, some children may experience fears of separation that are more intense and persistent than expected for their age. In some cases the anxiety worsens and results in extreme emotional outbursts, excessive worrying about what will happen to their parent/caregiver, difficulty sleeping without them or refusal to attend school. When these challenges are persistent or significantly affect your child’s daily life, this may be associated with Separation Anxiety Disorder (SAD).
If your child displays signs of SAD, it may be worth seeking support from a professional who can work with you and your child to identify the appropriate care and help manage symptoms within their expected age range.
Child Anxiety vs ADHD Symptoms: Key Differences
Anxiety and ADHD symptoms in children can look similar, for example, both may involve restlessness, difficulty sleeping and concentrating or becoming easily overwhelmed. However, the root causes of these behaviours can be very different.
ADHD is a neurodevelopmental condition resulting in consistent difficulty with attention and impulse control, across different settings, and not only present when the child is worried. Whereas anxiety is fear-based and associated with excessive worrying. While they have distinct features, the two can frequently occur together, particularly in children.
| Area | ADHD | Anxiety |
| Core issue | Significant and persistent difficulties with attention, forgetfulness, following instruction and impulsivity | Excessive worry, fear, or nervousness about specific or general things |
| Attention problems | Consistent across multiple settings (home, school, play) | Inconsistent: trouble focusing mainly when worried or anxious about something |
| Restlessness / fidgeting | Constant, but not tied to a specific trigger | Often tied to worry e.g. fidgeting before a test or when separated from a parent |
| Impulsivity | Common: blurting out, interrupting, acting without thinking | Less common: may be overly cautious or avoidant instead |
| Trigger pattern | Symptoms fairly consistent regardless of situation | Symptoms spike around specific triggers (new situations, separation, performance, social settings) |
| Physical symptoms | Less common (can mimic anxiety symptoms if present) | Frequent (stomachaches, headaches, nausea, muscle tension etc.) |
| Avoidance behavior | Not typical | Common (avoids school, social events, or activities that provoke worry) |
| Sleep issues | Can occur (racing thoughts, restlessness) but less central | Very common (trouble falling asleep due to worries and can have nightmares) |
| Response to structure/routine | Struggles to maintain organisation and routines without support, even when calm | Often thrives with predictable routines (unpredictability increases anxiety) |
| Response to reassurance | Reassurance doesn’t change attention/impulsivity | Reassurance has a temporary calming affect, but worry often returns |
| Social behavior | May interrupt, struggle with sharing, act impulsively with peers | May be withdrawn, be fearful of judgement, clingy, or overly eager to please |
| Onset pattern | Symptoms typically present from an early age, across contexts | Can emerge or worsen after a specific event (move, loss, family stress, social issues) |
| Underlying feeling | Not usually driven by fear: more about regulation | Driven by fear, worry, or perceived threat |
Anxiety and ADHD can overlap, and having a proper evaluation can determine their needs and what kind of support will best benefit your child.
Common Childhood Anxiety Triggers
While anxiety can manifest from many different experiences, it can also develop without any external influence. Children with anxiety may not be under any obvious duress; however, they may have intrusive thoughts or internalised fears that can trigger anxiety.
Some common triggers across childhood anxiety include:
- Separation and attachment: Worry about being away from parents or their primary caregiver, including sleeping away from home.
- Life transitions: Moving to a new home, changing schools, or significant family shifts like divorce or the birth of a sibling.
- Academic pressure: Fear of failure or making mistakes, anxiety around tests, or difficulty keeping up with schoolwork and meeting teacher/parent expectations.
- Social situations: Making new friends, peer rejection, or experiences with bullying or cyberbullying.
- Stress in the home: Financial stress, parental conflict, or a family history of anxiety and other mental health conditions.
- Global or unpredictable events: Exposure to news about natural disasters, illness, trauma or other terrifying events.
- Trauma: Exposure to harmful or confronting situations such as a death in the family, domestic violence, or witnessing a traumatic event.
When to Seek Professional Help
You can seek professional help as soon as you become concerned about your child’s anxiety. However, it’s best to seek support if their anxiety becomes persistent, disproportionate to the situation, or begins to interfere with daily life and sleep. Early support can help children create healthy ways to understand and manage their anxiety before it continues to impact their daily lives as they develop.
Our multidisciplinary team at HealthSync Care takes a holistic approach to support, offering timely and streamlined services. We work with families to better understand your child’s needs and difficulties, identifying the appropriate next steps and support that works best for your child. If you’re looking for immediate support, reach out to us today.
