Anxiety Disorders: Symptoms, Types, Diagnosis & NHS Treatment

Anxiety is the most common mental health condition in the UK, affecting around 8 million people at any given time. It is a natural human response to stress or perceived danger, but when anxiety becomes persistent, excessive, or interferes with daily life, it may be an anxiety disorder that requires treatment. The good news is that anxiety disorders are highly treatable, with effective NHS and private options available.

What Is Anxiety?

Anxiety is a feeling of unease, worry, or fear that can range from mild to severe. It is a normal response to stressful situations — such as a job interview, medical diagnosis, or financial difficulty. However, when anxiety is persistent, disproportionate to the situation, or occurs without an obvious trigger, it may indicate an anxiety disorder. Anxiety disorders are characterised by excessive worry or fear that is difficult to control and that significantly affects everyday functioning.

Types of Anxiety Disorders

Generalised Anxiety Disorder (GAD) involves persistent, excessive worry about a wide range of everyday things — health, money, work, family — that feels difficult to control. It is the most common anxiety disorder in the UK, affecting around 5–6% of the population.

Panic Disorder is characterised by recurrent, unexpected panic attacks — sudden surges of intense fear with physical symptoms — along with persistent worry about having further attacks. Many people with panic disorder also develop agoraphobia (fear of situations where escape might be difficult).

Social Anxiety Disorder (also known as social phobia) involves intense fear of social situations and scrutiny by others, leading to avoidance of social interactions. It is more than shyness and can severely limit education, work, and relationships.

Health Anxiety (formerly known as hypochondria) involves excessive worry about having or developing a serious illness, often despite reassurance from doctors and normal test results. It is estimated to affect around 4–5% of the population.

Obsessive-Compulsive Disorder (OCD) involves unwanted, intrusive thoughts (obsessions) and repetitive behaviours or mental rituals (compulsions) performed to reduce anxiety. OCD affects around 1–2% of the UK population.

Post-Traumatic Stress Disorder (PTSD) develops after experiencing or witnessing a traumatic event. It involves flashbacks, nightmares, hypervigilance, and avoidance of reminders of the trauma.

Specific Phobias are intense, irrational fears of specific objects or situations — such as spiders, heights, flying, or needles — that lead to avoidance and significant distress.

Anxiety Symptoms: Physical and Psychological

Anxiety produces both psychological and physical symptoms. Psychological symptoms include persistent worrying that is difficult to control, feeling on edge or restless, irritability, difficulty concentrating, a sense of dread or feeling that something bad will happen, and in severe cases, depersonalisation (feeling detached from yourself) or derealisation (feeling that the world is not real).

Physical symptoms of anxiety include a rapid or pounding heartbeat (palpitations), shortness of breath, chest tightness, dizziness or lightheadedness, sweating, trembling or shaking, nausea or stomach upset, headaches, muscle tension and aches, dry mouth, frequent urination, and sleep problems including difficulty falling asleep or staying asleep. Many people with anxiety first seek help for physical symptoms, not realising that anxiety is the underlying cause.

What Causes Anxiety?

Anxiety disorders result from a combination of genetic, biological, psychological, and environmental factors. You may be more likely to develop an anxiety disorder if you have a family history of anxiety or other mental health conditions; have a history of trauma, abuse, or adverse childhood experiences; are going through significant life stressors such as job loss, relationship breakdown, or bereavement; have a long-term health condition; misuse alcohol or drugs; have certain personality traits such as perfectionism or low self-esteem; or have an overactive stress response system in the brain.

Diagnosing Anxiety

There is no single test for anxiety disorders. Diagnosis is based on a detailed discussion of your symptoms with your GP or a mental health professional, along with validated screening tools such as the GAD-7 questionnaire for generalised anxiety and the PHQ-9 for depression. Your GP may also carry out blood tests to rule out physical causes of anxiety symptoms, such as an overactive thyroid.

NHS Treatment for Anxiety

The NHS offers several effective treatments for anxiety disorders. The NICE guidelines recommend a stepped-care approach, starting with the least intensive interventions and progressing to more intensive treatment if needed.

NHS Talking Therapies (formerly Improving Access to Psychological Therapies — IAPT) is the main route to psychological treatment for anxiety in England. You can self-refer without a GP referral. Treatments offered include cognitive behavioural therapy (CBT), which is the most evidence-based psychological treatment for anxiety disorders; guided self-help based on CBT principles; mindfulness-based approaches; and applied relaxation therapy.

Medications for anxiety include selective serotonin reuptake inhibitors (SSRIs) such as sertraline, fluoxetine, and escitalopram, which are the first-line medication choice for most anxiety disorders; serotonin-noradrenaline reuptake inhibitors (SNRIs) such as venlafaxine; pregabalin, which is licensed for GAD in the UK; and buspirone. Beta-blockers such as propranolol can help manage physical symptoms of anxiety (such as rapid heartbeat) in specific situations like performance anxiety. Benzodiazepines are generally only prescribed for short-term use in the UK due to their addiction potential.

Self-Help Strategies for Anxiety

Alongside professional treatment, many evidence-based self-help strategies can significantly reduce anxiety. Regular physical exercise has consistently been shown to reduce anxiety levels — even 30 minutes of moderate exercise such as brisk walking, five days a week, can make a meaningful difference. Mindfulness and meditation practice reduces the reactivity of the brain’s stress response over time and is recommended by NICE for anxiety prevention. Controlled breathing techniques, such as 4-7-8 breathing or diaphragmatic breathing, can quickly reduce physical symptoms of anxiety. Limiting caffeine and alcohol, as both can worsen anxiety symptoms. Establishing a regular sleep schedule, as poor sleep significantly amplifies anxiety. Challenging anxious thoughts using CBT techniques such as thought records and behavioural experiments. Gradually facing feared situations rather than avoiding them, as avoidance maintains and often worsens anxiety over time.

Anxiety and Depression

Anxiety and depression very commonly occur together — around half of people diagnosed with depression also have an anxiety disorder, and vice versa. When both conditions are present, treatment needs to address both. The good news is that many of the same treatments — particularly CBT and SSRIs — are effective for both anxiety and depression.

Getting Help for Anxiety in the UK

If anxiety is affecting your daily life, relationships, or work, please seek help. Start by speaking to your GP, or self-refer to NHS Talking Therapies in England (find your local service at nhs.uk/mental-health/talking-therapies). Mental health charities including Mind, Anxiety UK, and No Panic offer helplines, online support, and peer support groups. In a mental health crisis, call 999, go to A&E, or call the Samaritans free on 116 123.

Important: The information on this page is for educational purposes only. If you are experiencing anxiety that is affecting your daily life, please seek advice from your GP or a qualified mental health professional.

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