The short answer
If chest discomfort is severe, getting worse, or has lasted 10 minutes, call 000 immediately. Also call 000 if it spreads to your arm, jaw, neck or back, or comes with sweating, nausea, dizziness or breathlessness. Stop and rest, tell someone, and if you have angina medicine, take it as directed. Chew 300 mg of aspirin unless you are allergic to it or your doctor has told you not to take it.
Call 000 Now If You Have Any of These
Before anything else — the part that cannot wait. Do not drive yourself. Do not wait to see if it settles. Paramedics can begin treatment in your living room, long before you would reach hospital by car. During a heart attack, muscle dies by the minute — and the muscle lost does not grow back.
Central chest pain or pressure
Tightness, heaviness or pain that is severe, getting worse, or has lasted 10 minutes — with or without other symptoms.
Pain spreading outwards
Discomfort radiating to one or both arms, the jaw, neck, back, or shoulders.
Chest pain with other symptoms
Sweating, nausea, breathlessness, or lightheadedness alongside any chest discomfort.
Sudden tearing pain
Severe pain that tears through to the back — this may signal a different but equally urgent condition.
The Sharpness Paradox
Here is the first thing most people have backwards. They assume sharp, stabbing pain is the dangerous kind — and that a dull ache can be safely ignored. In the cardiology world, it is usually the other way around.
Sounds scary — but usually isn't
Sharp, stabbing pain that can be pinpointed with one finger, that worsens when breathing in or twisting — this typically comes from the chest wall, muscles, or rib joints. But sharp pain can also come from inflammation around the heart (pericarditis), a clot in the lung, or a tear in the aorta. Sharp pain that is severe, new, comes with breathlessness, or follows recent surgery, travel or illness needs urgent medical assessment. Call 000 if you are unsure.
Sounds mild — but earns immediate attention
Cardiac discomfort is vague almost by design. A pressure, a tightness, a heaviness sitting behind the breastbone that refuses to be located exactly. People reach for the same phrases: a weight on the chest, a band tightening, an elephant sitting on them. Describing it with a flat hand or fist over the centre — not a pointed fingertip — is the language of the heart.
The Single Most Useful Thing You Can Notice
If you take one idea from this article, make it this one. The most powerful clue to whether chest discomfort is cardiac is its relationship with exertion. Pain from a narrowed coronary artery follows a clear logic: the narrowing limits blood flow. Trouble appears when the heart works harder, and it settles when you stop and let demand fall.
Activity begins
Walking uphill, hurrying for a bus, carrying shopping upstairs — the heart is asked to work harder.
Discomfort arrives
A heaviness, tightness, or ache appears — reliably, during the same level of effort.
Rest relieves it
Stopping the activity eases the discomfort within a few minutes. This pattern is called stable angina.
Become a good historian of your own symptoms. When did it come on? What were you doing? How long did it last? What made it stop? Those four answers tell an experienced cardiologist more than most machines do.
When It Usually Isn't Your Heart
Most chest pain genuinely is not cardiac — and understanding the common causes is useful, though none of them are safe to self-diagnose for the very first time. If in doubt, get checked.
Musculoskeletal Pain
A strained chest muscle or inflamed rib joint produces pain that is sharp, tender to the touch, tied to a particular movement, and worse with a deep breath. If pressing firmly on the sore spot recreates the pain exactly, the odds swing away from the heart — though treat this as a guide, not a guarantee.
Acid Reflux
Stomach acid rising into the oesophagus can produce a burning central discomfort that mimics angina so closely the two are sometimes impossible to separate without testing. A link to meals, lying down at night, or a sour taste points towards reflux — but "indigestion" has sent people home when the cause was cardiac, and the reverse happens just as often.
Anxiety and Panic
Anxiety is real and physical. It can generate genuine chest tightness, a pounding heart, breathlessness, and tingling in the hands — usually building fast and easing over twenty to thirty minutes. It is a legitimate cause of chest pain. It is also a diagnosis made after the heart has been cleared, never as the opening assumption.
The Patients Who Need the Most Attention
The classic crushing chest pain is, in a strange way, the easy presentation — because it frightens people into hospital quickly. The quiet presentations are the ones that cause the most harm, and they gather in particular groups.
Women
Chest pain or discomfort is still the most common heart attack symptom in women. Women are more likely to also have breathlessness, nausea, unusual tiredness, or jaw, neck or upper back discomfort. These symptoms deserve the same urgency.
People with Diabetes
Diabetes can blunt the nerves that carry warning pain, so a starved heart may whisper rather than shout. New exertional symptoms — however mild — warrant investigation.
Older Adults
Breathlessness out of proportion to effort, unfamiliar fatigue, or dull discomfort in the stomach or upper body may be the only signal. Age does not make symptoms less important — it often makes them harder to read.
What Actually Happens in the Arteries — and Why It Matters
Most patients assume the artery most likely to cause a heart attack is the one that looks most narrowed on a scan. The truth is stranger — and it matters more than people realise.
The unstable plaque problem
Many heart attacks are triggered not by the tightest blockage, but by a modest one that was never limiting blood flow. A plaque narrowing an artery by just forty per cent can carry a thin, unstable cap that suddenly cracks, triggers a clot, and closes the vessel within minutes.
Meanwhile, a stable ninety per cent narrowing might behave for years as predictable exertional angina and never be the thing that ends a life. This is why "my scan was clear last year" is thinner comfort than it sounds — and why a heart attack can strike someone who felt perfectly well the day before.
Why prevention targets the whole arterial tree
Assessing your cardiovascular risk — with tools such as the Australian cardiovascular risk calculator (AusCVDRisk), which your GP can use, or a coronary artery calcium score — and treating cholesterol and blood pressure properly works by calming the entire arterial environment, not just the one narrowing that happens to be visible on imaging.
Modern imaging can study arteries in remarkable detail, and modern tools can open blockages once considered too complex for anything but open surgery. The best outcome, though, is still the heart attack that never happens.
Why "Wait and See" Is the Most Dangerous Phrase
The reassuring reality is that most chest pain is not caused by the heart. The harder reality is that it is not possible to reliably separate the harmless from the dangerous from your kitchen table — and the delay while trying is exactly what causes the damage.
"Denial is not a character flaw. It is one of the most predictable features of a heart attack — and it is dangerous precisely because it feels so reasonable in the moment."
Countless patients have said afterwards that they did not want to make a fuss, that they were certain it was indigestion, that they decided to sleep on it. The patients who do best are almost always the ones who "overreacted." Nobody has ever been grateful for the heart muscle they lost by waiting until morning.
Emergency — Call 000
If chest discomfort is severe, getting worse, or has lasted 10 minutes, call 000 immediately — especially with sweating, breathlessness, nausea or pain at rest.
See a GP or Cardiologist
Milder discomfort that is new, keeps returning, or comes on with exertion. Not an emergency — but not something to gamble on settling by itself.
What Actually Happens When You Get Checked
Knowing the pathway removes much of the fear that keeps people at home. Assessment begins with your story and an examination — the history of your symptoms carries genuine diagnostic weight. An ECG follows, and if the pain is recent or active, a blood test called troponin looks for evidence of heart muscle injury.
History, Examination & ECG
Your description of symptoms — when, what you were doing, how long, what stopped it — guides diagnosis as much as any test. An ECG records the electrical activity of the heart and can reveal acute problems.
Coronary Artery Calcium Score
A test for people without symptoms that helps estimate long-term risk. It is not the right test to explain chest pain, because a score of 0 does not rule out a blockage.
CT Coronary Angiogram (CTCA)
Shows the arteries in fine detail and has become a reliable way to rule coronary disease in or out. Medicare rebates apply when a specialist requests the scan and you meet set clinical criteria.
Stress Test or Invasive Angiogram
A stress test watches how the heart performs under load. If a significant blockage is confirmed, an invasive angiogram — guided through the wrist — can identify and often treat it in the same procedure with a stent. What once required open-heart surgery can now mean a single day in hospital.
For GPs
- Suspected ACS: symptoms within 24 hours, ongoing or rest pain, haemodynamic compromise or ischaemic ECG changes: call an ambulance. Chew 300 mg of aspirin unless you are allergic to it or your doctor has told you not to take it. Do not order a community troponin. (NHFA/CSANZ 2016)
- Community troponin: a single urgent test is reasonable only when symptoms were more than 24 hours ago, the ECG is normal, there are no high-risk features, and the result can be acted on the same day.
- Stable exertional symptoms: a normal resting ECG does not exclude coronary disease. Refer to cardiology; CTCA is Medicare-rebated only on a specialist request (MBS 57360).
- Avoid "atypical": record symptoms as cardiac, possibly cardiac or non-cardiac, and consider cardiac causes in women, people with diabetes and older patients even when chest pain is not prominent. (AHA/ACC 2021)
- Referral contents: symptom timing and triggers, ECG copy, lipids, HbA1c, eGFR, AusCVDRisk score, current medicines and any prior cardiac imaging.
- While awaiting assessment: prescribe sublingual GTN with the written Heart Foundation action plan for suspected angina.
General information for referring practitioners. Check current MBS and PBS criteria before acting.
Frequently asked questions
Is sharp, stabbing chest pain a heart attack?
Usually not. Sharp pain you can pinpoint, or that worsens when you breathe in or twist, typically comes from the chest wall, muscles or rib joints. Heart pain tends to be a vague pressure or heaviness behind the breastbone.
Should I drive myself to hospital?
No. Call 000. Paramedics can start treatment before you reach hospital, and heart muscle is lost by the minute during a heart attack.
Can a heart attack feel mild?
Yes. Many begin quietly: a heaviness on the stairs, a jaw ache that fades, or breathlessness blamed on age.
What if the discomfort only comes on with exercise and settles with rest?
That pattern is the strongest clue that it may be coming from a narrowed heart artery. See your GP promptly. If chest discomfort is severe, getting worse, or has lasted 10 minutes, call 000 immediately.
When to Book an Appointment
The heart is remarkably honest about signalling when something is wrong. The skill lies in listening — without either panicking or dismissing it. Arrange a non-urgent assessment with a GP as the first step, or directly with a cardiologist if a referral is already in place, if any of the following apply.
Exertional chest tightness or breathlessness
Discomfort that comes on reliably with physical effort and settles with rest — the hallmark pattern of stable angina.
Recurring chest discomfort
Any chest pain that keeps returning, even briefly, even mildly — this is your body repeating a message worth hearing.
Symptoms plus risk factors
New chest symptoms alongside diabetes, high blood pressure, high cholesterol, a strong family history of heart disease, or a past or current smoking habit.
Symptoms quietly shrinking your world
Avoiding the stairs or the hills you once climbed without a thought — that change in behaviour is itself a symptom worth investigating.
Related reading
- Understanding Coronary Artery Disease
- Your CT Coronary Angiogram Report, Decoded
- Coronary Calcium Score: What Your Result Means
If you have chest pain now, call 000. For ongoing or unexplained symptoms, book a consultation with Dr Primero Ng (a GP or specialist referral is needed). GPs: refer a patient