
Dr. Mimi XuChild & Adolescent Psychiatrist
MD, MMed(Psych), FRANZCP, Adv Cert Child Adol Psych
AHPRA: MED0001931439
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Dr. Mimi XuChild & Adolescent Psychiatrist
Specialist psychiatric assessment and treatment for generalised anxiety, social anxiety, separation anxiety, panic disorder, and school refusal in children, adolescents, and adults via secure telehealth across Australia.
Anxiety becomes a clinical concern when worry, fear, or physical symptoms consistently interfere with daily life. Anxiety disorders are the most common mental health conditions in Australia, affecting about 1 in 7 people in any given year. They often begin in childhood or adolescence and are highly responsive to evidence-based treatment.
Anxiety presents in many forms. Generalised anxiety disorder (GAD) involves persistent, hard-to-control worry across multiple areas. Social anxiety is fear of negative evaluation by others. Separation anxiety in children involves disproportionate distress when apart from caregivers. Panic disorder involves sudden physical surges of fear. Specific phobias and selective mutism are also recognised anxiety conditions.
In children, anxiety often shows up as physical complaints (stomach aches, headaches), reluctance to go to school, sleep difficulties, or behavioural changes such as irritability and tearfulness. Many children cannot name what they are feeling, and parents often see the behaviour long before the underlying worry is articulated.
Common Signs of Anxiety
Common ways Anxiety can present
Stomach aches, headaches, or nausea that consistently appear on school mornings and resolve on weekends. Tearfulness about going in, repeated reassurance seeking, and at the extreme, complete refusal to attend.
Persistent worry across many areas (school, friends, family, the future, world events) that the person finds hard to switch off. In children, often paired with reassurance seeking and a "what if" pattern of thinking.
Intense fear of being judged or embarrassed in social situations. Avoidance of speaking in class, eating in front of others, parties, or new social environments. Often misread as "shyness" until it limits friendships and education.
Sudden physical surges of fear with racing heart, breathlessness, sweating, dizziness, and a sense of losing control. Often confused with cardiac problems on first presentation. May lead to avoidance of places where attacks have occurred.
In young children, intense distress about being away from a parent — refusing sleepovers, school drop-offs, or even being in another room of the house. Can persist into adolescence and adulthood in less obvious forms.
Difficulty falling asleep due to racing thoughts, frequent night waking, fatigue, muscle tension, and chronic physical complaints with no medical cause. Often the first thing families notice.
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Our free screening tools can help with that first step.
ADHD · Autism · Anxiety · Depression · PTSD
Take a Free ScreeningCognitive Behavioural Therapy (CBT) is the first-line evidence-based treatment for anxiety disorders across the lifespan. CBT helps the person understand the link between thoughts, physical sensations, and behaviour, and gradually face feared situations rather than avoiding them. For children, family-involved CBT and structured programmes such as Cool Kids have strong evidence.
Medication is added when anxiety is moderate-to-severe, when it is preventing engagement in therapy, or when comorbid depression is present. SSRIs are the most commonly used medication and are well-tolerated by most people, including children and adolescents. Treatment plans are individualised based on age, severity, comorbidities, and family preference.
At Lionheart, our role is comprehensive psychiatric assessment, accurate diagnosis (including identifying when something else such as ADHD, autism, or trauma is driving the anxiety), and treatment planning. We coordinate with psychologists for ongoing CBT, manage medication where appropriate, and review progress over time.
Our Specialist Psychiatrists
Experienced clinicians providing assessment and treatment for Anxiety


How to Get Started
Simple steps to access specialist care
Complete our free, validated screening tools for some initial answers.
Request a Mental Health Treatment Plan referral from your GP.
Choose a convenient time for your telehealth consultation.
Meet with your psychiatrist via secure video from home.
Anxiety rarely travels alone. It commonly co-occurs with depression, ADHD, autism, OCD, and trauma. Untreated anxiety in childhood significantly increases the risk of depression and substance use in adolescence and adulthood, so accurate early assessment matters.
Telehealth is well-suited to anxiety treatment. For socially anxious children and teens, doing the first appointment from a familiar room often produces a more accurate picture than the artificial environment of a clinic waiting room. Parents can join part of the session, leave for the rest to give the young person privacy, and join again at the end.
For perinatal anxiety in pregnant women and new mothers, Dr Joanna Blades provides specialist care. Anxiety in pregnancy and the postpartum period is common, often hidden, and highly treatable when correctly identified. Treatment is shaped by the realities of pregnancy and breastfeeding.
Validated screening tools you can complete anonymously and share with any clinician.
Validated 7-question screener for generalised anxiety. Used worldwide.
8+ years
Depression frequently co-occurs with anxiety. Worth screening for both.
18+ years
ADHD can present as or co-occur with anxiety. Useful when worry is paired with focus difficulties.
18+ years
Conditions that often co-occur with Anxiety or share overlapping presentations.
Depression assessment and treatment for children, adolescents, adults, and perinatal women. Specialist psychiatric care via telehealth across Australia.
Obsessive-Compulsive Disorder (OCD) is a mental health condition involving intrusive thoughts and repetitive behaviours. Specialist assessment, diagnosis, and treatment via telehealth across Australia.
PTSD assessment and trauma-informed treatment for children, adolescents, and adults. Specialist psychiatric care via telehealth across Australia. Coordination with trauma-trained psychologists for evidence-based therapy.
Perinatal psychiatric assessment and treatment for women in pregnancy and the postpartum period, including antenatal and postnatal depression, anxiety, OCD, and birth-related PTSD. Telehealth across Australia.
ADHD assessment and treatment for children, adolescents, and adults. Specialist psychiatric care via telehealth across Australia, including stimulant prescribing and ongoing review.
Frequently Asked Questions
Common questions about Anxiety
All children worry. The threshold for clinical anxiety is when the worry is disproportionate to the situation, hard to switch off, and interfering with normal functioning (school attendance, friendships, sleep, family life). If it has lasted more than a few weeks and is getting worse rather than better, an assessment is worthwhile.
Both can manage anxiety, but psychiatrists have specialist mental-health training that is particularly useful for moderate-to-severe anxiety, complex presentations (anxiety with ADHD, autism, depression, or trauma), or where medication is being considered. Many families work with their paediatrician for general care and a psychiatrist for the anxiety-specific treatment plan.
Not always. Mild-to-moderate anxiety often responds well to CBT alone, particularly in children and adolescents. Medication is added when anxiety is severe, when it is blocking engagement in therapy, or when there is significant comorbid depression. SSRIs are well-evidenced and generally well-tolerated when needed.
Yes. School refusal is one of the most common presentations we see. The first step is understanding what is driving it — anxiety, learning difficulties, social problems, ADHD, depression, or some combination. Treatment then targets those drivers, with a graded plan to return to school in coordination with the school and your GP.
Yes. Panic disorder responds very well to a combination of psychoeducation (understanding what panic actually is), CBT focused on interoceptive exposure (deliberately bringing on feared physical sensations in a safe setting), and medication when severity warrants it. Many people see significant improvement within 8 to 12 weeks.
Research consistently shows telehealth psychiatric assessment and follow-up review are equivalent to in-person care for most presentations of anxiety. For socially anxious patients, telehealth often reduces the additional anxiety of a clinic visit and produces a more accurate clinical picture in the first appointment.
We partner with GPs and healthcare professionals to provide comprehensive psychiatric assessments and ongoing collaborative care for your young patients.
Questions about referring? Contact us at hello@lionheartclinic.com.au
Why Choose Telehealth from Australia?
Access specialist psychiatric care without leaving home
Collaborative approach involving parents and carers throughout the journey, with clear communication and support every step
All psychiatrists are Fellows of RANZCP with specialist training in child & adolescent mental health
Secure video consultations from home, reducing stress for children and saving family time
Access specialist care sooner with telehealth appointments across all Australian states and territories
Investment in Your Care
Clear pricing for initial psychiatric assessment
A comprehensive 1.5 hour clinical consultation including:
Medicare Rebates Available
With a valid GP referral and Mental Health Treatment Plan, you may be eligible for Medicare rebates. Please check with Medicare for current rebate amounts.
Follow-up Consultations
If ongoing care is recommended, follow-up appointments are available at standard private psychiatry rates.
For current fees, please or reach out to us directly.
To book an appointment, ask your GP for a referral to Lionheart Clinic. Referrals are valid for 12 months and Medicare rebates apply. We also accept private bookings and NDIS participants.
Important: We Are NOT an Acute Crisis Service
Lionheart Clinic provides non-acute psychiatric assessment and ongoing care. If you, your child, or a young person you care for are experiencing any of the following, please seek immediate help:
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