The Lyceum

The panic that came from nowhere

Specialist CBT therapy for anxiety, OCD, depression and more in West London

A sudden surge of fear can feel as if it arrived from nowhere. There may be a racing heart, breathlessness, dizziness, shaking, tingling, chest discomfort, nausea, a sense of unreality, fear of losing control or a fear that something serious is happening. The experience can be frightening. It does not, on its own, establish panic disorder, explain the cause or show that a physical symptom is safe to ignore. Physical symptoms can have many causes. New, severe, changing or concerning symptoms may need medical advice or urgent care. A blog cannot assess chest pain, breathing changes, fainting, neurological symptoms, medication effects or another health concern. It should not tell someone that a medical problem is “just panic”. Sometimes an assessment identifies a pattern in which fear of a sensation, uncertainty, checking, avoidance or reassurance seeking changes what happens next. Sometimes the wider context matters: sleep, illness, grief, stress, alcohol or drug use, medication, trauma, work pressure, a difficult memory or a recent health event. The point of assessment is to understand the person’s experience carefully, rather than forcing a single explanation. CBT based therapy may be considered after assessment where clinically appropriate. It can explore the relationships between sensations, interpretations, attention, emotion, behaviour and the situations around an episode. It cannot guarantee that panic will stop, decide that a symptom is medically benign or replace medical review. Where behavioural work is clinically appropriate, it is planned collaboratively with a qualified clinician. A blog is not a self directed instruction to induce a sensation, stop a safety behaviour abruptly, avoid medical care or face a distressing situation alone. Pace, consent, safety and medical information matter. It can help to describe one episode in detail: what was happening beforehand, what was noticed first, what meaning followed, what action came next, what medical information is already available and what support was present. This does not prove a diagnosis. It can make the next question clearer. The next step may be medical review, practical support, assessment or simply more information, depending on the context. For related information, see <a href="/therapy/panic attacks/">panic support</a>, <a href="/guides/panic attacks recovery roadmap/">the panic attacks recovery roadmap</a> and <a href="/guides/how to break panic attack cycle/">the guide to the panic cycle</a>. If distress includes crisis, thoughts of self harm or an inability to keep safe, urgent appropriate help is needed.

Frequently asked questions

Does a sudden panic episode mean I have panic disorder?

No. A sudden episode does not establish a diagnosis. Assessment considers the wider pattern, health information and context.

Should I assume chest symptoms are panic?

No. New, severe, changing or concerning symptoms may need medical advice or urgent care.

Can I practise exposure for panic by myself using an article?

No. Behavioural work should be planned with a qualified clinician when appropriate and should not replace medical advice.

When should I seek urgent help?

Seek urgent appropriate help if distress includes crisis, thoughts of self harm or an inability to keep yourself safe.

Related pages

  • CBT for panic attacks
  • Therapy for anxiety
  • Anxiety: comprehensive clinical guide
  • Panic attacks and panic disorder guide
  • Panic disorder treatment evidence
  • How CBT works
  • Book a free 15 minute consultation
  • What panic is not
  • The first panic attack
  • The thing nobody tells you about panic
  • What I wish I'd known about panic
  • The open plan office
  • The open plan office and the ADHD brain
  • The partner who became a doctor
  • The partner who felt unheard
  • Explore all clinical reflections

Keep evidence close

If this was useful, you can choose The Lyceum Clinic as a Preferred Source on Google. Google may then highlight relevant new reading from us in its personalised search experiences.

Make The Lyceum a Preferred Source on Google

Your choice is voluntary and can be changed in your Google settings.

Written by Sanah Younis, BABCP accredited CBT Therapist at The Lyceum Clinic.

Last clinically reviewed: 14 August 2026

Clinical information on this page is general and does not replace personalised assessment. If you are in immediate danger, call 999 or attend A&E.

Home CBT therapy services CBT approaches Clinical guides Clinical blog About The Lyceum Sanah Younis Clinical faculty Clinical standards Clinical evidence Frequently asked questions Find a support pathway Support for anxiety and overwhelm Support for low mood and disconnection Therapy for mental health difficulties Proactive mental clarity support Relationship and boundary therapy Online CBT outside London CBT methodology Sleep, movement and wellbeing Insurance and cash plans Check insurance cover Professional referrals Contact The Lyceum Anxiety therapy West London OCD therapy West London Depression therapy West London CBT therapist Chiswick CBT therapist Hammersmith CBT therapist Ealing Fees and insurance Book a free 15 minute consultation Book a session