You are sitting quietly when your heart suddenly feels as though it has stopped, fluttered or delivered one unusually heavy beat.
It lasts for a second.
Your attention moves straight to your chest.
Was that normal?
You place two fingers on your wrist and wait for the next beat. You count for a few seconds, lose track and start again. Perhaps you open the heart-rate app on your watch or sit completely still so you can detect whether it happens again.
The original sensation has passed, but the investigation has begun.
You check whether you feel dizzy. You assess your breathing. You wonder whether there is pressure in your chest that you had not noticed before.
Then your heart starts beating faster because you are frightened.
That change can feel like confirmation that the first sensation was dangerous.
A skipped or extra heartbeat can trigger panic because it is sudden, internal and difficult to explain in the moment. Your mind may interpret the sensation as evidence that your heart is failing or that something serious is about to happen. The resulting adrenaline makes your heartbeat, breathing and chest sensations more noticeable, creating a convincing cycle of sensation, fear and further sensation.
The palpitation may have been real. The frightening conclusion attached to it is not automatically accurate.
What does a “skipped heartbeat” actually feel like?
People use the phrase “skipped heartbeat” to describe several different sensations. It may feel like:
- A pause followed by a heavy thud
- A flutter in the chest
- One extra beat
- A brief irregular rhythm
- A sudden pounding sensation
- The feeling that the heart stopped and restarted
These sensations are generally described as heart palpitations. The NHS explains that palpitations may feel pounding, racing, fluttering or irregular, including skipped or extra beats. They have a range of possible causes, including stress and anxiety, lack of sleep, caffeine, alcohol, medicines and physical health conditions. An article cannot determine what caused yours.
That distinction matters.
This article is not suggesting that every unusual heartbeat should be dismissed as anxiety. It explains what can happen psychologically once a sensation has occurred, particularly when it has been medically assessed or when fear and checking continue long after the sensation has ended.
Why does one unusual beat feel so dangerous?
Your heartbeat usually continues without requiring your attention.
You do not consciously supervise every contraction. You trust the process because it happens automatically in the background.
A sudden pause, flutter or thud interrupts that trust.
Your mind may immediately predict:
“What if my heart stops?”
“What if this is an abnormal rhythm?”
“What if I have a heart attack?”
“What if I collapse while I am alone?”
“What if the doctors missed something?”
The prediction can arrive before you have time to consider other explanations. Your body responds to the meaning you have given the sensation, not only to the sensation itself.
Adrenaline can increase your heart rate, change your breathing, tighten the muscles around your chest and make you more alert to physical changes. The NHS includes an increased heart rate among the physical effects anxiety can produce.
You may now feel several genuine sensations instead of one.
The sequence can happen quickly:
Unusual beat → frightening interpretation → adrenaline → stronger body sensations → checking → greater certainty that something is wrong
This is one reason the experience feels so convincing. Your fear produces physical evidence that appears to support the original fear.
Why do I keep waiting for it to happen again?
Once you have noticed one unusual beat, your attention may remain fixed on your chest.
You stop reading, watching television or listening to the conversation. Part of your attention stays on duty.
You may hold your breath so you can feel your heartbeat more clearly. You might change position, press a hand against your chest or repeatedly check your pulse.
Every normal beat becomes evidence that you are still monitoring correctly.
Every slight variation becomes a new question.
The problem is that heartbeats are not experienced as perfectly identical mechanical clicks. Their force and timing can feel different depending on your position, breathing, movement and level of attention.
When you are waiting for a particular sensation, you become far more likely to notice anything that resembles it.
That does not mean you imagined the original sensation. It means sustained monitoring increases the amount of bodily information reaching your attention.
Why does checking my pulse make me more anxious?
Checking promises a clear answer.
You want to establish that your pulse is steady, your heart rate is within an acceptable range and the unusual sensation has stopped.
If the reading looks normal, you may feel relieved.
Then another thought appears:
“Did I check for long enough?”
“What if it only happens occasionally?”
“What if the watch did not detect it?”
“What if it starts again when I stop checking?”
You repeat the check because the first result cannot guarantee what will happen next.
If the rate is higher than expected, you become alarmed. If it is lower than expected, that can also become alarming. If it changes while you are watching, you may interpret the movement as instability rather than a body responding from moment to moment.
The check no longer has a reliable result that can settle you.
This is different from appropriately recording information because a clinician has asked you to. The anxiety pattern involves checking repeatedly in an attempt to achieve complete certainty.
You can read more about that behaviour in Why do I keep checking my heart rate?
Why can a smartwatch make the fear more complicated?
A smartwatch can provide useful information, but it can also give health anxiety another stream of data to interpret.
You may check the number immediately after noticing a palpitation. If the reading is different from what you expected, you take another measurement. You scroll through the day’s graph looking for a spike, dip or irregular section.
Perhaps the device says the reading was inconclusive.
That word can feel threatening even though it does not tell you that something dangerous happened.
You may then spend the evening comparing charts, searching for explanations or attempting to recreate the sensation while recording it.
The aim has shifted from using a device sensibly to trying to capture absolute proof that your heart is safe.
No wearable device can provide permanent certainty about every future heartbeat.
Why do I notice skipped beats more when I am resting or in bed?
A palpitation can feel particularly noticeable when the room is quiet and there is little else competing for your attention.
During the day, you may be speaking, moving and responding to what is around you. In bed, your attention has fewer external demands. You can feel movement against the mattress, hear subtle sounds and notice the pulse in your chest or neck.
If you have previously panicked about your heart at night, getting into bed may also have become a cue to check.
You lie down and immediately ask:
“How does my heart feel tonight?”
The question directs your attention towards the exact sensation you hope not to find.
If you notice a thud, you may sit up, turn on the light or reach for your phone. Sleep becomes dependent on completing a cardiovascular safety check that never feels entirely complete.
Why does reassurance from a doctor sometimes fail to last?
Medical assessment is important when symptoms require it.
A clinician may listen to your heart, arrange an ECG or recommend further investigation based on your history and symptoms. If you receive a reassuring result, you may initially feel much calmer.
Then your mind qualifies the reassurance.
“My heart was behaving normally during the test.”
“They did not catch the sensation I felt last night.”
“What if something has changed since then?”
“What if I did not describe it properly?”
The test answered a medical question based on the assessment performed. Anxiety asks for something broader: a guarantee that no dangerous event could ever occur.
Medicine cannot supply that level of certainty.
Repeatedly seeking the same reassurance may settle one version of the question while teaching your mind to return whenever another palpitation occurs.
What I notice in clinical work
In my clinical work, people often describe a sensation lasting one or two seconds followed by an investigation lasting twenty minutes, an evening or sometimes several days.
The heartbeat is no longer the only problem.
They are replaying exactly how it felt, checking their pulse, comparing it with previous episodes and monitoring whether exercise, food, caffeine or lying in a certain position might trigger it again.
When we slow the sequence down, the central fear is often very specific.
It may be the fear that the heart will stop, that they will collapse without help, that a serious condition has been missed or that they can no longer trust their body.
That feared meaning matters because two people can notice a similar sensation and respond very differently. One registers it and continues with the evening. The other begins an urgent investigation.
The work is not about insisting that a symptom means nothing. It is about changing the automatic response that treats every unexplained beat as an immediate emergency after appropriate medical questions have been addressed.
Why can avoiding exercise, coffee or certain positions reinforce the fear?
You may begin removing anything you associate with the sensation.
You stop exercising because an increased heartbeat makes it harder to tell whether another unusual beat has occurred. You avoid coffee even when you previously drank it without difficulty. You stop lying on one side because your heartbeat feels more noticeable in that position.
Some changes may be sensible if recommended by a healthcare professional.
The anxiety pattern is different. The avoidance is being used to prevent fear and uncertainty rather than following individual medical advice.
If the sensation does not occur, your mind may decide the restriction protected you.
If it does occur, your mind may decide you have not been careful enough.
Either conclusion keeps the unusual heartbeat important.
Your life can gradually become organised around preventing, detecting and explaining a sensation that may last less than a second.
Is this panic or health anxiety?
It can involve elements of both.
Panic may be present when the sensation produces an immediate surge of fear, adrenaline and an urge to escape or obtain urgent help.
Health anxiety may become more prominent afterwards. You research causes, examine your pulse, request reassurance or repeatedly review whether something serious has been overlooked.
The same pattern can move between the two:
- You feel an unusual heartbeat.
- You predict danger.
- Your body enters a panic response.
- You check for further symptoms.
- You seek information or reassurance.
- The anxiety reduces temporarily.
- You become more watchful for the next occurrence.
You do not need to choose the perfect label before seeking help. The useful question is what happens between noticing the sensation and returning to what you were doing.
How can the automatic pattern change?
The aim is not to teach yourself that every palpitation is harmless. That would be another absolute promise, and it would not be medically responsible.
The aim is to separate appropriate medical action from the anxiety investigation.
Appropriate action has a purpose and an end point. You follow current medical guidance, arrange an assessment when needed and provide useful information to the clinician.
The anxiety investigation repeatedly reopens the question after that action has been taken.
Changing the pattern involves recognising the sequence early:
- The sensation that captured your attention
- The meaning your mind assigned to it
- The physical response that followed
- The checks used to establish safety
- The avoidance or reassurance that brought relief
- The lesson your mind learned from that relief
Logical reassurance alone may not stop the response because the sequence can start before you have consciously reasoned through it.
You may already know that you have experienced palpitations before and that previous assessments were reassuring. Your hand can still move towards your pulse automatically.
Focused therapeutic work looks at that learned response, the feared outcome and the behaviours that keep the threat relevant. It also requires your participation. The aim is for you to respond appropriately without feeling compelled to supervise every heartbeat.
When should I seek medical advice about palpitations?
Palpitations can have several causes, and new, persistent, worsening or concerning symptoms should not simply be assumed to be anxiety.
The NHS guidance on heart palpitations explains when to contact your GP, when to use NHS 111 and when emergency help is required. It advises calling 999 when palpitations are accompanied by certain symptoms, including chest pain, shortness of breath or fainting. Follow the current guidance rather than relying on an anxiety article to assess your symptoms.
Hypnotherapy does not diagnose or treat a heart condition and should not replace appropriate medical care.
Hypnotherapy for panic and health anxiety in Bromsgrove
I am Louise Squires, an experienced Clinical Hypnotherapist and Psychotherapist based in Bromsgrove, Worcestershire. I specialise in anxiety, panic and phobias, working with clients locally and online.
When a skipped heartbeat has become an anxiety trigger, we look at the complete automatic pattern. That includes what the sensation means to you, what you predict will happen next, how your body responds and which checks or restrictions have started feeling necessary.
The focus is not on ignoring genuine symptoms. It is on being able to follow appropriate medical advice without remaining trapped in continuous monitoring and repeated attempts to prove that your heart is safe.
You can explore hypnotherapy for anxiety and panic in Bromsgrove, read more specific explanations in the Anxiety Hub, or learn about the related pattern of checking your heart rate.
Your free one-hour initial consultation gives us time to understand what happens when you notice the sensation, how the fear affects your daily life and whether my focused approach is appropriate for you.
Book your free initial consultation.
Frequently asked questions
Can anxiety cause skipped or extra heartbeat sensations?
Anxiety and stress can be associated with heart palpitations and can make your heartbeat more noticeable. Palpitations also have other possible causes, so new, recurring or concerning symptoms should be discussed with an appropriate healthcare professional rather than automatically attributed to anxiety.
Why do I notice my heartbeat more at night?
There are fewer external distractions when you are lying quietly, making internal sensations easier to notice. If you already fear palpitations, bedtime can also prompt anticipatory checking, which directs even more attention towards your chest and pulse.
Can hypnotherapy help with fear of palpitations?
Hypnotherapy may help address the learned sequence connecting a heartbeat sensation with predicted danger, panic, checking and avoidance. It does not treat the physical cause of palpitations, and suitability depends on appropriate medical concerns having been assessed.