Heart Palpitations in Perimenopause: Hormones, Histamine or Something Else?

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You are not imagining it, and you are not alone in noticing it. Based on articles retrieved from PubMed, a large cohort study following nearly 3,300 women through the menopause transition found that roughly half reported some pattern of palpitations during perimenopause and early postmenopause, most commonly alongside vasomotor symptoms like hot flushes, poorer sleep and higher perceived stress (Carpenter et al., Menopause, 2022, DOI: 10.1097/GME.0000000000002082). Reassuringly, in that same study, palpitations were not associated with markers of subclinical cardiovascular disease such as carotid atherosclerosis or arterial stiffness.

Reassuring is not the same as automatic, though. Palpitations always deserve a proper look, and this post explains why, then works through the most common underlying patterns.

First: Rule Out What Needs Ruling Out

See your GP, or seek urgent care, if palpitations come with any of the following: chest pain or pressure, fainting or near-fainting, breathlessness at rest or with minimal activity, palpitations that do not settle within a few minutes, a family history of sudden cardiac death, or if you have a known heart condition. These are red flags that need medical assessment before anything else on this page is relevant to you.

Even without red flags, palpitations in perimenopause deserve investigation rather than assumption. A 2026 review from cardiologists at Concord Hospital in Sydney makes the point plainly: common perimenopausal symptoms including fatigue, breathlessness, sleep disturbance and palpitations can sometimes represent unrecognised cardiac pathology rather than "just hormones," and early menopause is independently linked to a graded increase in heart failure risk (Kwan et al., Heart, Lung and Circulation, 2026, DOI: 10.1016/j.hlc.2026.05.011). A basic work-up, an ECG, blood pressure check, thyroid function and iron studies, is a reasonable ask of your GP if you have not had one.

Once that is done and nothing serious has been found, the everyday causes below are where most perimenopausal palpitations sit.

The Hormonal Pattern

Oestrogen has a real, if incompletely understood, relationship with the systems that control heart rate. It interacts with the autonomic nervous system and with catecholamines, the adrenaline-family chemicals that speed the heart up under stress or exertion.

Emerging Animal research in ovariectomised rats found that falling oestrogen was accompanied by changes in adrenalin and noradrenaline metabolism alongside signs of cardiovascular strain, and that oestrogen replacement improved these markers (Jiang et al., Experimental Gerontology, 2017, DOI: 10.1016/j.exger.2017.02.009). This is animal data, not proof of the same mechanism in women, but it fits the broader pattern seen in human research.

The human evidence is more mixed than a tidy explanation would suggest. One small human study found that short-term transdermal oestrogen did not meaningfully blunt the body's noradrenaline response to stress in postmenopausal women, and if anything trended the other way (Sofowora et al., Clinical Autonomic Research, 2005, DOI: 10.1007/s10286-005-0261-z). Older review work has described broader links between oestrogen decline and autonomic and vascular changes after menopause, without claiming a single clean mechanism (Mercuro et al., Italian Heart Journal, 2001).

The honest summary: oestrogen's falling and fluctuating levels are a plausible and commonly experienced trigger for palpitations, particularly alongside hot flushes, but the exact biological pathway is still being worked out. This uncertainty does not make the symptom any less real.

Three Other Patterns Worth Knowing

Palpitations are also a headline symptom of three conditions I write about in more depth elsewhere on this site, each with its own distinct mechanism and management approach.

POTS (Postural Orthostatic Tachycardia Syndrome). If your heart specifically races when you stand up, alongside dizziness or lightheadedness, this points toward an autonomic nervous system pattern rather than a purely hormonal one. I cover this, and the broader picture of dysautonomia it sits inside, in Heart Racing When You Stand? POTS, MCAS and Histamine in Perimenopause and Dysautonomia in Perimenopause.

MCAS and histamine. If palpitations travel with flushing, hives, digestive upset or reactions to foods you previously tolerated, histamine released by overactive mast cells may be part of the picture, since histamine dilates blood vessels in a way that can trigger a compensatory racing heart. More detail is in What is Histamine Intolerance and Why is it So Common in Perimenopause?

Anxiety. Palpitations and anxiety share a genuinely circular relationship: anxiety can cause palpitations, and palpitations can cause anxiety, and perimenopause can drive both independently. A study of midlife women in China found palpitations were significantly associated with higher odds of depressive symptoms, alongside mood swings and sleep disturbance (Fu et al., Climacteric, 2020, DOI: 10.1080/13697137.2019.1703936). I go through how to tell hormonal anxiety apart from your usual experience of anxiety in Is It Perimenopause or Anxiety? How to Tell the Difference.

These four patterns, hormonal, POTS, histamine and anxiety, are not mutually exclusive. Many women recognise more than one.

What Actually Helps

Once serious causes are excluded, the evidence for specific palpitation treatments is thinner than you might expect. A systematic review of 37 studies on menopausal symptom treatments and palpitations found that most interventions, including common supplements like isoflavones and sage, cognitive behavioural approaches and several medications, could not be recommended based on the current evidence. The only option with some supportive evidence, to be used cautiously and individually assessed, was oestrogen therapy such as estradiol (Sheng et al., Climacteric, 2021, DOI: 10.1080/13697137.2021.1948006).

No current evidence Popular supplements marketed for menopausal palpitations do not currently have supportive evidence from this review. That does not mean none will ever help an individual woman, but it does mean caution and clinical guidance matter more than marketing claims.

In practice, the most useful first steps are the same ones that support every hormone-sensitive system: consistent sleep, adequate hydration, identifying your personal triggers (caffeine, alcohol, heat, standing for long periods, missed meals), and pacing activity rather than pushing through a flare. If a specific pattern from POTS, histamine or anxiety fits what you are noticing, the strategies on those pages go further than general advice can.

Where Coaching Fits

A racing or pounding heart is not something coaching diagnoses or treats. That work belongs with your GP and, where needed, a cardiologist or other specialist. What coaching can offer, once serious causes are ruled out, is help identifying your specific pattern, tracking triggers so you walk into appointments with real information, and building the daily structure, sleep, hydration, pacing, that supports whichever system turns out to be involved.

If you are trying to work out which pattern fits you, the free two-minute symptom check is a structured place to start, or you can book a free discovery call to talk it through.