Symptom Combination

Palpitations and Sweating: Causes, Conditions & When to See a Doctor

Palpitations with sweating together indicate significant sympathetic activation — this combination occurs in pheochromocytoma, thyroid storm, hypoglycemia, arrhythmia with fear, and acute MI. Pheochromocytoma must be considered when episodic palpitations + profuse sweating + headache occur together.

→ Palpitations Overview → Sweating Overview

Possible Causes of Palpitations and Sweating

Conditions that commonly cause both symptoms together

1Pheochromocytoma: episodic palpitations + sweating + headache + hypertension
2Hypoglycemia with sympathetic surge causing tachycardia + diaphoresis
3Thyroid storm with palpitations and profuse sweating
4Panic disorder with cardiac awareness and diaphoresis
5Acute MI with cardiac awareness and sympathetic diaphoresis

Emergency Red Flags

Seek immediate medical attention if you experience any of these

Episodic hypertension + palpitations + sweating + headache (pheochromocytoma triad)

Palpitations + sweating + tremor + anxious patient (thyroid storm or hypoglycemia)

Drenching sweats during palpitation episodes

Diaphoresis + chest pain + palpitations (MI)

Paroxysmal symptoms triggered by body position or Valsalva

When to See a Doctor

Schedule a medical consultation if you notice these signs

Measure blood glucose immediately to exclude hypoglycemia

24-hour urinary catecholamines or plasma metanephrines if pheo is suspected

ECG during episode + Holter for arrhythmia evaluation

Thyroid function tests + echo for comprehensive workup

Conditions That Cause Both Palpitations and Sweating

2 conditions are associated with this symptom combination

Heart Attack (Myocardial Infarction)

A heart attack occurs when blood flow to part of the heart muscle is blocked, usually by a blood clot in a coronary artery. Immediate treatment is critical. Symptoms include chest pain, pressure radiating to the arm or jaw, sweating, and nausea.

Hypoglycemia is low blood sugar, typically below 70 mg/dL. Most common in people with diabetes, it causes rapid neurological and adrenaline-driven symptoms requiring prompt treatment.

Explore Individual Symptoms

In-depth pages for each symptom in this combination

Palpitations — Full Overview Causes Treatment When to See a Doctor Related Questions

Sweating — Full Overview Causes Treatment When to See a Doctor Related Questions

Medical Questions About Palpitations and Sweating

Evidence-based answers from medical experts

Early Signs of Heart Attack (Myocardial Infarction)How to Manage Heart Attack (Myocardial Infarction)Why Does Palpitations Happen?When Is Palpitations Dangerous?How to Relieve Palpitations What Causes Palpitations?Can Stress Cause Palpitations?Why Is Palpitations Worse in the Morning?

Clinical Matches — Authority Pages

Condition-level differential and comparison resources for this combination

⚠ Dangerous — Rule Out First:

Heart Attack (Myocardial Infarction)

Differential analyses:

🔬Heart Attack (Myocardial Infarction): differential →🔬Hypoglycemia: differential →

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