Reference

Heart palpitations and anxiety

Heart palpitations describe an increased awareness of heartbeat such as racing, pounding, fluttering, skipping, or “thumping” sensations in the chest or throat. Palpitations are commonly reported in anxiety and panic, but similar sensations can also occur with cardiac rhythm changes and other medical contributors.

Educational content only. New, severe, sudden, or concerning symptoms should be medically evaluated. This page does not provide diagnosis or treatment.

Emergency note: Seek urgent medical care for chest pain with pressure, fainting, severe shortness of breath, new neurologic symptoms, signs of stroke, or palpitations with sustained rapid heart rate and severe symptoms.

Anxiety Explained note

How this fits the framework: Palpitations are a common “body-first” signal. When the body alarms first, the mind may quickly search for meaning, which can intensify the loop between sensations and threat interpretation.

What palpitations can feel like

• Racing heartbeat
• Pounding or forceful heartbeat
• Fluttering or “vibrating” sensation
• Skipped beats or brief “drop” sensations
• Thumping in the chest, neck, or throat

Why anxiety can cause palpitations

Anxiety activates the body’s threat response systems, including the autonomic nervous system. This activation can increase heart rate, change breathing patterns, tighten chest and neck muscles, and increase internal awareness of body sensations.

Palpitations are especially common during panic and panic attacks, when rapid activation makes normal physiologic changes feel urgent or dangerous. This connects to the broader explanation in why anxiety feels physical.

The interpretation loop

Palpitations often become more distressing when they are interpreted as a sign of immediate danger. This interpretation can increase threat response, which increases arousal, which can increase palpitations. The result is a reinforcing loop between sensation and perceived threat.

This loop overlaps with health-focused anxiety, in which body sensations are more likely to be interpreted as signs of illness or medical emergency.

Anxiety palpitations vs heart problems

Anxiety-related palpitations are real physiologic experiences, but palpitations can also reflect arrhythmias, thyroid contributors, medication effects, stimulant sensitivity, dehydration, anemia, or other medical conditions. Because symptom overlap is significant, new or changing palpitations are often evaluated medically.

Consider medical evaluation especially when palpitations are:

• New, worsening, or occurring at rest without a clear pattern
• Associated with fainting, near-fainting, severe dizziness, or chest pressure
• Accompanied by severe shortness of breath or sustained rapid heart rate
• Occurring with new neurologic symptoms

For a deeper comparison-focused explanation, see anxiety vs heart problems and can anxiety feel like a heart attack.

Related physical symptoms that commonly cluster

Palpitations often appear alongside other anxiety-related body sensations. When multiple sensations cluster, they may be interpreted as evidence of danger even when the mechanism is threat activation.

• Chest pain and anxiety
• Shortness of breath and anxiety
• Dizziness and anxiety
• Tingling and anxiety
• Nausea and anxiety

Related pages

Anxiety symptoms How symptoms cluster across body and mind.
Body-focused anxiety When activation leads and meaning follows.
What is a trigger? How cues activate threat responses.
Health anxiety When sensations become threat-coded.

Author

Gabrielle McMurphy, LCPC
Licensed Clinical Professional Counselor
Licensed in Idaho, North Carolina, South Carolina, and Montana
Founder, AnxietyExplained.com

Created: Jan 2026
Last reviewed: Mar 2026

Purpose: Educational reference only.