In the acute coronary syndrome (ACS) symptom complex, sweating can differentiate ST‐segment elevation myocardial infarction (STEMI) from non–ST‐segment elevation ACS (NSTE‐ACS) during early hours of infarction. Presence of sweating with ACS symptoms predicts probability of STEMI, even before clinical confirmation. Sweating was used as synonymous to diaphoresis, defined as profuse drenching sweats inappropriate to the physical and environmental state.

The major symptoms of a heart attack are: Chest pain or discomfort… Feeling weak, light-headed, or faint. You may also break into a cold sweat. Pain or discomfort in the jaw, neck, or back… Shortness of breath… Other symptoms of a heart attack could include unusual or unexplained tiredness and nausea or vomiting. Women are more likely to have these other symptoms.

The most common atypical presentations were gastrointestinal discomfort, chest pain without having typical characteristics of angina pectoris, syncope, and cough and breathlessness.[1] Prodromal symptoms like shortness of breath, dizziness, fatigue, syncope, gastrointestinal discomfort or head/neck pain should be suspected for atypical MI in patients 50 years or older with comorbidities.[1] Notably, diaphoresis (including sweating, clammy skin and perspiration) featured in 12/41 studies in a reported range of 2.4%–27.9% of acute coronary syndrome presentations.[4]

Pay attention to your body and call 911 if you have: Chest discomfort… Discomfort in other areas of the upper body… Shortness of breath… Other signs. Other possible signs include: Breaking out in a cold sweat; Nausea; Rapid or irregular heartbeat; Feeling unusually tired; Feeling lightheaded.

The Troponin-only Manchester Acute Coronary Syndromes (T-MACS) decision aid includes visible or observed sweating (diaphoresis) as a predictor of acute myocardial infarction. One of the strongest predictors is whether the patient looks sweaty… visible sweating was the only feature that relates to the patient's physical examination… If the patient looks visibly sweaty that shoots up [the probability of MI] to about 59%.

Profuse sweating without obvious cause can be a warning sign of a heart attack, especially when it occurs along with crushing chest pain, shortness of breath, fainting, or rapid or irregular heartbeat. The article advises calling emergency services if you experience "profuse sweating without obvious cause" together with other severe chest symptoms, and notes that even when an esophageal spasm is suspected, "it's safer to rule out a heart attack first."

Dyspnoea was the most reported symptom across all included articles (n=39/41)... Similarly, neurological symptoms were commonly investigated... Fatigue, weakness or lethargy also accounted for high proportions of presentations.[4] When investigated, atypical chest pain, described as non-specific, pleuritic or burning, was another common symptom... Nausea and vomiting were also identified with high frequency... Notably, diaphoresis (including sweating, clammy skin and perspiration) featured in 12/41 studies in a reported range of 2.4%–27.9%.[4] Other symptoms less commonly reported included (though not exclusively) cardiac arrest, diarrhoea, cough, hiccups, headache, indigestion and altered mental status.[4]

The warning signs of a heart attack are shown in Table 2… Chest discomfort… Discomfort in other areas of the upper body… Shortness of breath… Other signs: These may include breaking out in a cold sweat, nausea, or light-headedness… Did you notice any additional symptoms in association with the discomfort such as nausea, sweating, or shortness of breath?

Warning symptoms of sudden cardiac arrest include: chest pain or pressure that may radiate to shoulders, arm, neck or jaw; profuse sweating; palpitations; unexplained shortness of breath; fainting or near fainting; and sudden collapse. Sudden cardiac arrest may occur without warning; however, many patients experience these warning symptoms in the hours, days or weeks before the event.

Esophageal spasms are painful contractions in the muscular tube connecting the mouth and stomach, called the esophagus.[7] Esophageal spasms can feel like sudden, bad chest pain that lasts from a few minutes to hours. Some people may mistake it for heart pain, also called angina.[7] Symptoms of esophageal spasms include squeezing pain in the chest (often intense and might be mistaken for heart pain or heartburn), difficulty swallowing, feeling that an object is stuck in the throat, and regurgitation.[7] The squeezing chest pain that happens with esophageal spasms also can be caused by a heart attack. If you have squeezing chest pain, seek medical care right away.[7]

Heart attack symptoms may include: Chest pain… Upper body pain… Shortness of breath… Anxiety… Lightheadedness or sudden dizziness… Sweating. You may suddenly break into a sweat with cold, clammy skin. Nausea and vomiting… Heartburn or indigestion. Some people who are having a heart attack may feel like they have heartburn or an upset stomach.

Sweating more than usual — especially if you aren’t exercising or being active — could be an early warning sign of heart problems. Pumping blood through clogged arteries takes more effort from your heart, so your body sweats more to try to keep your body temperature down during the extra exertion. If you experience cold sweats or clammy skin, then you should consult your doctor.

In some cases, esophageal spasms can cause chest pain that feels like you’re having a heart attack. The pain can be severe and may feel like squeezing in your chest, and may radiate to your neck, left arm or back. The two most common symptoms of esophageal spasms are difficulty swallowing (dysphagia) and noncardiac chest pain; esophageal spasms themselves are not considered life-threatening, but they can mimic heart attack pain closely enough that immediate cardiac evaluation is recommended when chest pain occurs.

Heart attack pain, in contrast, is more constant, crushing or heavy, may radiate to the arm or jaw, and is paired with sweating, nausea, or shortness of breath.[2] "Esophageal spasm symptoms" can overlap with cardiac issues, but there are clues that point toward the esophagus: chest pain that is sharp, squeezing or burning, lasts seconds to minutes, and is often triggered by swallowing hot or cold foods/liquids, with regurgitation, heartburn or difficulty swallowing.[2] In the comparison table, associated symptoms for esophageal spasm include regurgitation, heartburn and dysphagia, whereas associated symptoms for heart attack include sweating, nausea, shortness of breath and jaw pain.[2]

The following are heart attack warning signs: Pressure, burning, tightness, or pressure-like discomfort in your chest, lasting five minutes or longer… Lightheadedness, fainting, sweating, or a sick stomach. Unexplained shortness of breath. Awareness of abnormalities in the normal beating of the heart, with unexplained sweating and pale skin… Other symptoms, such as a shortness of breath, breaking out in a cold sweat, nausea, or lightheadedness.

Esophageal spasm means that contractions of the esophagus are not regular and sometimes strong. Most people with this condition have chest pain that may spread outward to the arms, back, neck, or jaw, and this pain can feel similar to a heart attack. Other symptoms include difficulty or inability to swallow food or liquid, pain with swallowing, and the feeling that food is caught in the center of the chest. Because of the symptom overlap, patients with chest pain "should be evaluated by a doctor as soon as possible to rule out or treat cardiac disease."

If you have any of these signs, call 911 and get to a hospital right away. Uncomfortable pressure, squeezing, fullness or pain in the center of your chest… Pain or discomfort in the arms, back, neck, jaw or stomach… Shortness of breath with or without chest discomfort. Other signs, including: Breaking out in a cold sweat; Nausea; Lightheadedness… Women may have other symptoms that are typically less associated with heart attack, such as: Anxiety; Shortness of breath; Upset stomach; Pain in the shoulder, back or arm; Unusual tiredness and weakness.

Cold Sweats: Breaking out into a cold sweat without physical exertion is one of the most urgent signs before a heart attack. Unlike normal sweating from heat or exercise, this is sudden, profuse, and often accompanied by other symptoms like chest pain or dizziness. If you’re sweating heavily while sitting still, it may be more than anxiety — it could be a heart attack warning sign.

Esophageal spasms are painful contractions in the esophagus that can feel like sudden, bad chest pain lasting from a few minutes to hours. Symptoms include squeezing pain in the chest that is often intense and might be mistaken for heart pain or heartburn, difficulty swallowing solids and liquids, feeling that an object is stuck in the throat, and regurgitation. The article notes that "the squeezing chest pain that happens with esophageal spasms also can be caused by a heart attack" and advises that if you have squeezing chest pain, you should seek medical care right away to rule out cardiac causes.

Atypical chest pain is a type of chest pain that only has some of the features of typical chest pain.[8] Typical chest pain related to the heart may feel like squeezing, tightness, crushing or pressure, may happen with exertion and feel better with rest, and sweating, upset stomach or shortness of breath may go with it.[8] Atypical chest pain causes, which may or may not be heart-related, include acute coronary syndrome, pericarditis, myocarditis, costochondritis, aortic aneurysm, pulmonary embolism, chronic acid reflux, esophageal spasm, esophageal rupture, esophagitis, anxiety and others.[8]

Some of the early warning symptoms are: Cold and excessive sweating – Feeling nervous and experiencing cold sweat is a common indicator of heart problems among women. The sweat is more related to stress than from exercising or from heat… Chest pain or discomfort – The most common symptom of a heart attack, but women may experience it differently than men.

Esophageal spasm is described as the unexpected, uncoordinated contraction of the esophageal muscles, a motility disorder that interrupts the normal flow of food. Generally speaking, "spasms in the esophagus are not dangerous," and the greatest danger is usually temporary difficulty swallowing or regurgitation of food. The most obvious symptom is the extreme pain associated with the spasm, and the first step in diagnosing esophageal spasm is to rule out the possibility of a heart attack, underscoring that the spasm itself is not a typical warning sign of an impending myocardial infarction even though it may be mistaken for one.

Pay attention to your body and call 911 if you experience: Chest discomfort… Discomfort in other areas of the upper body… Shortness of breath… Other signs. Other possible signs include breaking out in a cold sweat, nausea or lightheadedness… As with men, women’s most common heart attack symptom is chest pain (angina) or discomfort. But women are somewhat more likely than men to experience some of the other common symptoms, particularly shortness of breath, nausea/vomiting, and back or jaw pain.

If you’ve ever felt sudden chest pain or difficulty swallowing while eating or drinking, you may have experienced an esophageal spasm. These episodes can feel alarming — sometimes even mimicking a heart attack — but the most common symptoms of esophageal spasms are difficulty swallowing (dysphagia) and chest pain. Because chest pain is a red-flag symptom, patients are cautioned not to assume it’s just a spasm; "heart-related chest pain can be life-threatening" and esophageal spasms and heart attacks can feel similar, so symptoms should not be ignored and require medical evaluation.

Sweating… can be a significant cardiac warning sign, especially if it feels “unusual”. In fact, the top three most commonly reported cardiac symptoms in both women and men are chest pain, sweating and shortness of breath. As Dr. Ryan warned: “Warning bells should ring off if a person suddenly starts sweating profusely.”… Remember: never try to explain away unusual sweating if it accompanies chest discomfort. Seek immediate medical help.

Esophageal chest pain can occur when the esophagus undergoes a strong spasm caused by a motility disorder of the esophagus. The most common esophageal cause of pain is gastroesophageal reflux disease, but motility disorders and esophageal hypersensitivity are also causes. The discussion emphasizes that when a patient does not have vascular disease in the heart, the physician should consider an esophageal source for the chest pain and proceed with endoscopy and pH monitoring; this framing treats esophageal spasm as a differential diagnosis for chest pain rather than as a warning sign of impending myocardial infarction.

"Nutcracker esophagus" (a hypercontractile motility disorder) can trigger chest pain, difficulty swallowing and the feeling that food is getting stuck. It is often misdiagnosed as a heart attack or acid reflux because the chest pain can closely resemble cardiac pain. High-resolution manometry reveals strong, repetitive contractions down the esophagus in some patients, but despite the severity of pain, nutcracker esophagus is a noncardiac cause of chest pain rather than a prodromal sign of myocardial infarction.

Heartburn and esophageal spasm can both mimic a heart attack; however, there are differences.[3] With heart attacks (MIs), there is often associated irregular heartbeat, pain radiating to the jaw, neck, and/or down the left arm, feeling weak, light-headed, faint, shortness of breath, and/or a cold-sweat or nausea.[3] With reflux-caused chest pain, attacks usually occur in the evening after a large meal and may be associated with indigestion and other reflux symptoms, and most people with reflux-caused non-cardiac chest pain usually have a long history of reflux.[3]

Chest pain or discomfort is the most common warning sign. Other symptoms include: feeling dizzy or lightheaded; short of breath; sweaty; sick. Symptoms may start suddenly or develop over minutes and get worse. If you think you are having a heart attack, call 111 for an ambulance straight away.

Sudden, unexplained sweating, medically called diaphoresis, can be an important early warning sign of a myocardial infarction, commonly known as a heart attack. It often occurs along with other symptoms, such as chest pain or discomfort, shortness of breath, nausea, or lightheadedness.

Chest discomfort with lightheadedness, fainting, sweating, nausea or shortness of breath… Other warning signs include unusual chest, stomach or abdominal pain; nausea, dizziness or difficulty breathing without chest pain; unexplained weakness, anxiety or fatigue; and heart palpitations, cold sweat or paleness. Not all of these signs occur in every attack. If you or someone you know experience all or some symptoms, get help fast! Call 911 immediately.

Chest pain can be confusing — is it heartburn or something more serious like a heart attack? Atypical symptoms of reflux can include chronic cough, wheeze or hoarseness.[9] Dysphagia may result from esophageal dysmotility induced by reflux (leading to esophageal spasm or stricture), and these esophageal conditions can cause chest discomfort that may mimic cardiac pain.[9] Educational materials from hospital systems commonly emphasize that chest pain accompanied by sweating, nausea, or shortness of breath should prompt evaluation for possible heart attack rather than assuming reflux.[9]

Knowing the signs of a heart attack can be life-saving. Symptoms of a heart attack include chest pain, shortness of breath, sweating, nausea, vomiting, fainting, lightheadedness and pain in the arms, neck, back, jaw or stomach. Sweating: You may experience cold sweats or break out into a sweat without any apparent cause.

Typical symptoms of an acute myocardial infarction include chest pain or discomfort, shortness of breath, nausea, and sweating. Pain is often described as a crushing or pressure-like sensation in the chest that may radiate to the arms, neck, jaw, or back. Diaphoresis (profuse sweating) is frequently reported but is not specific and can occur with other conditions such as anxiety, infection, or hypoglycemia.