Heart Attack or Gas Trouble? How to Tell and When Not to Try

Answered by Dr. Dante Ruskin · Diabetologist & Intensivist

You cannot reliably separate a heart attack from gas trouble at home, and no doctor tries. Cardiac pain is usually pressure or heaviness rather than cramping, often spreading to the arm, jaw or back, with cold sweating and breathlessness — but a good number of heart attacks feel exactly like acidity.

Relief after an antacid proves nothing. Heart-attack pain can ease briefly on its own, and patients reach us hours late for precisely that reason. Any unexplained chest discomfort, especially with sweating, breathlessness or nausea, should be treated as cardiac until a hospital says otherwise — call 108.

Dr. Dante Ruskin consulting a patient at PPK Hospital, Marthandam
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If this is happening right now

If someone has chest pain, pressure or heaviness at this moment — most of all with cold sweating, breathlessness, vomiting, or a feeling that something is badly wrong — stop reading and call 108. The ambulance is free, it carries trained staff, and the network knows which centre nearest to you is equipped for what. Do not drive the person yourself, do not let them walk out to the road, and do not wait to see whether an antacid settles it. Note the time the discomfort started. Everything below is written for a calm afternoon afterwards, not for an emergency in progress.

Chest pain or heart attack — what to do right now →

Why this question gets asked so often here

“Gas trouble” is our all-purpose explanation for anything uncomfortable between the throat and the navel — nenjerichal (நெஞ்செரிச்சல்) in Tamil, nenjerichil (നെഞ്ചെരിച്ചിൽ) in Malayalam. It is not a foolish idea. Acidity genuinely is common, a late dinner of kappa and fish curry genuinely can sit heavily, and most chest discomfort in most people really is not a heart attack. The difficulty is that the phrase is used to close a question rather than open one. A man wakes at two in the morning with a heavy chest, decides it was the dinner, sits propped against the wall until light, and reaches the hospital at nine — by which time the hours that mattered most have already been spent.

What cardiac pain usually feels like

Ask a patient to show you where it hurts. Someone with a heart problem usually puts a whole palm or a closed fist on the centre of the chest; someone with acidity points with one finger. The sensation is described as pressure, squeezing, heaviness, tightness or a band rather than a sharp or cramping pain, and it is spread out rather than pinpoint. It often radiates — to the left arm, both arms, the jaw, the neck, the upper back or between the shoulder blades. It frequently begins with effort: the climb up from the paddy field, carrying a load, rushing for a bus, an argument. And it rarely comes alone. Cold sweating, nausea, breathlessness or sudden severe weakness alongside chest discomfort is cardiac until proven otherwise.

What acidity usually feels like

Reflux tends to burn rather than press, and the burn travels upward behind the breastbone, sometimes with a sour or bitter taste at the back of the throat. It commonly follows a particular meal — heavy, oily, very spicy, or eaten late and slept on soon after. It is often worse lying flat and better sitting up, and it may ease with belching. Many people have had the same pattern on and off for months or years and recognise it well. Crucially, plain acidity does not usually bring drenching cold sweat, breathlessness at rest, vomiting with collapse, or a spreading heaviness in the jaw and arm. Those companions belong to the other list.

The test that fails: antacid relief

Here is where an honest page has to part company with the popular ones. A great many patients — and, to be fair, some clinics — treat the response to an antacid as a diagnosis: it settled, therefore it was gas. It proves nothing. Heart-attack pain naturally waxes and wanes, so discomfort that fades ten minutes after a tablet, a glass of hot water, or simply lying down may be following its own course and nothing else. The timing convinces the family. It does not convince the heart. No emergency physician anywhere uses antacid response as a test, because a five-minute ECG answers the question properly and a hopeful assumption never will. Relief rules nothing out.

The golden hour, and how it gets lost

In a heart attack, muscle dies steadily from the moment an artery blocks, and the treatments that reopen it work best when they are given early — the reason the first hours are called golden. What we see in this district is that the time is very rarely lost on the road. It is lost at home, in the decision: waiting for the antacid to work, waiting for morning, waiting for a son to come from Trivandrum, waiting for a bus rather than calling an ambulance because an ambulance feels like an overreaction. Call 108 first and decide nothing else — the ambulance network knows the nearest equipped centre and takes you there. PPK Hospital, Marthandam runs a 24×7 emergency department and intensive care with ventilator support to stabilise patients while that is arranged.

Who should not spend even ten minutes deciding

Some people have already used up their margin for guessing. Anyone with sugar — as diabetes is called in every home here, sakkarai noi in Tamil, prameham in Malayalam — because long-standing high sugar damages the nerves that carry cardiac pain, so the warning may arrive only as breathlessness, sweating or exhaustion. Also: anyone with high blood pressure, high cholesterol, a tobacco habit, kidney disease, a previous cardiac event, or a parent or sibling who had a heart attack young. Women and older adults more often report the atypical version — fatigue, nausea, jaw or back discomfort — and are more often reassured wrongly, at home and sometimes in clinics.

The silent heart attack in diabetes →Heart attacks before 40 →

What not to do while you wait

Do not drive yourself, and do not let the person walk, climb stairs, or go to the bathroom alone — exertion during a heart attack widens the damage. Give nothing by mouth — no food, no water, no tablets, including aspirin — unless the 108 team or a doctor instructs it, because aspirin helps some causes of chest pain and is dangerous in others. Do not spend the wait hunting for old reports; carry the medicine strips as they are. Do not postpone the call to consult a relative by phone first. And separately: do not start a daily aspirin on your own as future protection — that advice was reversed in 2019 and again in 2022 for most adults without established heart disease, and it is a prescribing decision after assessment.

What actually happens when you come in

Knowing the sequence removes a surprising amount of the hesitation. An ECG is done within minutes of arrival — it is quick, painless and costs very little — and it is often repeated, because an early ECG can be normal in a heart attack that is still declaring itself. A blood test for cardiac enzymes is taken and usually repeated after some hours, since the rise takes time. In between, you are monitored, given pain relief if needed, and watched. If everything stays normal, you are told so, treated for acidity if that is the answer, and sent home. That is not a wasted trip. That is the system working exactly as intended.

The version of this you can control

Most of the chest pain we meet in the emergency room was preceded by years of quiet, treatable numbers. Blood pressure that nobody checked. Sugar that was “borderline” at a camp and never followed up. A lipid report filed away. Tobacco that everyone knew about. None of these hurt while they are doing their damage, which is precisely why they need measuring rather than feeling. A yearly review that takes blood pressure, sugar and lipids seriously — together, not one at a time — is the least dramatic and most effective thing on this page. The pain you are afraid of is assembled quietly over years — which is also what makes it largely preventable.

Diabetes care with Dr. Ruskin →Critical care at PPK →

Frequently asked questions

Yes, and it happens often. The heart and the food pipe share nerve pathways, so cardiac pain can arrive as burning, bloating, belching or a heaviness in the upper stomach. Discomfort that a patient describes as indigestion is one of the commonest ways a heart attack presents late — particularly in people with diabetes, in older adults and in women.

No. This is the single most dangerous assumption in this whole subject. Heart-attack pain naturally rises and falls, so relief that arrives a few minutes after any tablet, hot water or lying down may simply be coincidence. No doctor uses the response to an antacid as a test. An ECG takes minutes and settles the question honestly.

Chest pressure or heaviness lasting more than a few minutes, or coming and going in waves, should not be waited on at all — call 108. Waiting is what costs heart muscle: the treatment for a blocked artery works best in the first hours, and every hour of watching at home spends part of that window permanently.

Only if the 108 team or a doctor tells you to, in that moment. Aspirin helps some heart attacks and is dangerous in other conditions that cause chest pain. Starting a daily aspirin on your own to prevent a future heart attack is also no longer advised for most healthy adults — guidance changed after 2019 because bleeding risk outweighed benefit.

Then you have had the best possible outcome, and nobody in the emergency room minds. An ECG, a period of observation and a blood test that stay normal are worth far more than a night spent guessing at home. In this district, the patients we lose are almost never the ones who came in too early.