Why is my heart skipping beats (PVCs and PACs)?

Heart palpitations, specifically Premature Ventricular Contractions (PVCs) and Premature Atrial Contractions (PACs), are caused by the withdrawal of estrogen from cardiac tissue during perimenopause. This hormonal decline triggers cardiovascular autonomic drift, destabilizing the heart's electrical conduction system and causing benign but distressing skipped or extra beats.

You are lying in bed at 2:00 AM. The room is quiet. Suddenly, your chest kicks. It feels like a fish flopping in your ribcage or a heavy thud against your sternum. You hold your breath, waiting for the next one.

The panic rises instantly. You wonder if this is a heart attack. You check your pulse, but your hands are shaking too hard to find it. You are convinced your heart is failing, but the doctors keep telling you that you are fine.

This is not just anxiety. This is a physical glitch in your internal wiring. You are not imagining the thumping, the skipping, or the fluttering. Your heart is reacting to a massive chemical shift that no one warned you about.

The medical system ignores this. They call it 'stress' or 'nerves.' They offer you anti-anxiety meds when you actually need hormone stability. You are tired of being dismissed while your heart continues to misfire every single night.

You deserve the raw truth about your biology. These skips are terrifying, but they are a hallmark of the perimenopausal transition. Understanding the electrical reality of your heart is the first step toward stopping the panic and regaining control.

I felt like my heart was trying to kick its way out of my ribs while I was just sitting on the couch watching TV. It is the most terrifying sensation I have ever experienced.

Every time I lie on my left side, the thumping starts. I am convinced this is the big one, but my EKG always comes back normal. I feel like I am losing my mind.

What it feels like

It feels like a missed stair in the dark. Your heart is beating normally, and then there is a sudden, empty pause. That pause is followed by a violent slam that feels like it moves your entire chest wall.

Some women describe it as a butterfly caught in a jar. There is a rapid, light fluttering in the throat or the upper chest. It can last for a few seconds or several minutes, leaving you breathless and lightheaded.

It often happens at rest. You notice it most when you finally sit down at the end of the day. The silence makes the skips louder. The thumping is rhythmic but interrupted by these jarring, irregular beats.

You might feel a 'flip-flop' sensation in your chest. It can feel like your heart is turning over. This is often accompanied by a sudden surge of heat or a wave of dread that washes over your body.

Lying on your left side often makes it worse. The position of your heart against your chest wall makes every PVC and PAC feel magnified. You flip to your right side, hoping the thumping will stop so you can sleep.

Post-meal palpitations are also common. After a heavy meal or a glass of wine, your heart starts racing or skipping. You feel the pulse in your neck. It is distracting, exhausting, and makes you fearful of basic daily activities.

What is actually happening

This is Cardiovascular Autonomic Drift. Your heart is not just a pump; it is an electrical organ. Estrogen acts as a natural calcium channel blocker and a stabilizer for the heart's electrical pathways. It keeps the rhythm smooth.

When estrogen levels fluctuate and fall, the heart's 'pacemaker' cells become hypersensitive. They become irritable. This irritability causes cells outside of the normal conduction path to fire early. These are called ectopic beats.

A PAC starts in the upper chambers. A PVC starts in the lower chambers. In both cases, the heart fires before it has fully filled with blood. The 'thump' you feel is actually the next normal, forceful beat.

The autonomic nervous system is also out of balance. The 'fight or flight' branch is overactive, while the 'rest and digest' branch is weakened. This imbalance makes your heart more reactive to caffeine, stress, and even minor movements.

Your heart is structurally healthy, but its software is glitching. The drop in estrogen changes how electrolytes like magnesium and potassium move in and out of heart cells. This makes the electrical threshold for a heartbeat much lower.

This is a temporary state of hypersensitivity. Your body is struggling to calibrate to lower hormone levels. The heart is one of the first organs to signal that the internal environment has changed. It is a biological alarm system.

What to tell your doctor

Do not go in and say 'I feel anxious' or 'My heart feels funny.' This will get you a prescription for an anti-depressant. Use clinical language. Say 'I am experiencing frequent premature ventricular contractions and palpitations.'

Demand a 12-lead EKG to establish a baseline. However, an EKG only looks at 10 seconds of heart activity. If your heart is not skipping at that exact moment, the test will be normal. This does not mean nothing is wrong.

Ask for a 48-hour or 7-day Holter monitor. This is a portable device you wear that records every single heartbeat. It will catch the PVCs and PACs while you are sleeping or going about your day. This provides data.

Request a full serum electrolyte panel, specifically checking magnesium, potassium, and calcium. Ask for a ferritin test. Low iron stores can significantly worsen heart palpitations in women. Ensure your thyroid-stimulating hormone (TSH) is also checked.

Explicitly state that these symptoms correlate with your menstrual cycle or other perimenopausal symptoms like hot flashes. Use the phrase 'perimenopausal palpitations' to frame the conversation around hormonal health rather than just cardiac health.

If the doctor dismisses you, ask them to document their refusal to investigate further in your chart. This often triggers a change in attitude. You are the boss of your medical team. Demand the data you need to feel safe.

What is a waste of time

Menopause teas and herbal tinctures are a waste of money. These products are unregulated and often contain low-quality ingredients that can actually irritate the heart further. They do not address the underlying estrogen deficiency.

Avoid expensive 'adrenal support' supplements. These are usually just overpriced multivitamins with some bovine tissue or herbs. They will not stop a PVC. Your heart is reacting to hormones, not 'tired adrenals.'

Cutting out all salt is often a mistake. While excess salt is bad for blood pressure, many women in perimenopause actually need more electrolytes to maintain heart rhythm. Low sodium can trigger palpitations just as easily as high sodium.

Do not rely on 'calming' essential oils to fix an electrical heart issue. Lavender might make you smell nice, but it will not stabilize the ion channels in your cardiac cells. This is a physiological issue, not a mood issue.

Chiropractic adjustments for heart rhythm are unproven and potentially dangerous. The heart's rhythm is controlled by internal electrical nodes and hormonal signals, not by the alignment of your spine. Stick to evidence-based clinical interventions.

Stop buying 'menopause-friendly' energy drinks. These often contain hidden stimulants or high doses of B-vitamins that can trigger heart skips. Anything marketed as an 'energy boost' is likely a trigger for your palpitations.

What actually works

Transdermal estradiol is the most effective treatment. Whether it is a patch, gel, or spray, replacing the lost estrogen stabilizes the heart's electrical system. It reduces the frequency and intensity of palpitations by calming the cardiac tissue.

Oral micronized progesterone is essential if you have a uterus. Taken at night, it has a sedative effect on the central nervous system. It helps reduce the 'fight or flight' response that often triggers nighttime thumping.

Clinical-strength magnesium glycinate or magnesium malate is a powerful tool. Aim for 300mg to 400mg daily. Magnesium is a natural calcium channel blocker. It helps the heart muscle relax and prevents the 'twitchiness' that leads to PVCs.

If HRT is not enough or not an option, low-dose beta-blockers can be used. These medications block the effect of adrenaline on the heart. They are very effective at stopping the physical sensation of the 'thump,' even if the skip still happens.

Maintaining optimal iron levels is critical. If your ferritin is below 50 ng/mL, your heart has to work harder to move oxygen. This strain leads to palpitations. Supplementing with iron under medical supervision can stop the skips.

Proper hydration with added electrolytes—specifically potassium and sodium—keeps the electrical signals in the heart clear. Use a high-quality electrolyte powder without sugar or caffeine to maintain the correct balance in your blood.

What you can do right now

Drink 500ml of water with a pinch of sea salt or an electrolyte packet immediately. Dehydration is a primary trigger for heart irritability. Often, a skip is just a signal that your blood volume is low.

Lower your thermostat. Set your bedroom to 65°F / 18°C. Heat is a major trigger for cardiovascular autonomic drift. Keeping your body cool reduces the strain on your heart and helps prevent nighttime palpitations.

Stop drinking alcohol after 6:00 PM. Alcohol is a potent cardiac irritant. Even one glass of wine can cause your heart to skip and race three or four hours later as your blood sugar drops.

Practice the Valsalva maneuver when you feel a flutter. Close your mouth, pinch your nose, and try to exhale forcefully for 10 seconds. This stimulates the vagus nerve, which can 'reset' the heart's rhythm and stop a run of skips.

Change your sleeping position. If you are a left-side sleeper and feel thumping, move to your right side or your back. This physically shifts the heart away from the chest wall and reduces the intensity of the sensation.

Cut out caffeine for 48 hours to see if it is a trigger. Even if you have handled coffee for years, your perimenopausal heart may no longer tolerate it. Switch to decaf or herbal tea to see if the frequency of skips drops.