I have chest flutters despite a normal EKG. What should I do?

Question

Hello doctor,

I am a 30-year-old active and fit male who has been experiencing sharp chest pain or fluttering sensations accompanied by lightheadedness on and off for about a month.

The first episode woke me from sleep. An EKG was performed, and everything appeared normal.

After several more episodes, I went to the ER. They repeated the EKG, ran blood work (no troponin elevation), and did a chest X-ray, all of which came back normal.

I have since had a normal echocardiogram, and I am almost finished wearing a Holter monitor.

I have been able to work out daily without major issues, although I did feel lightheaded during a run a few weeks ago. I was already anxious because of the fluttering sensation. My heart rate was within a normal range, though slightly higher than usual during training.

Are there any additional tests I should consider getting done?

Kindly help.

Answer 1

Hello,

Welcome to icliniq.com.

I read your query and can understand your concern.

Given your age, fitness level, and the reassuring results from multiple evaluations, two normal ECGs (electrocardiogram), normal cardiac enzymes (no troponin rise), normal chest X-ray, and a normal echocardiogram, it is very encouraging that no structural or ischemic heart disease has been found so far.

The Holter monitor you are currently wearing is the most appropriate next step, as it helps detect intermittent rhythm disturbances (arrhythmias) such as premature atrial or ventricular contractions, supraventricular tachycardia, or brief atrial fibrillation episodes that may not appear on a standard ECG.

These can cause the fluttering, skipped beats, or lightheaded sensations you describe. If the Holter results return normal but the symptoms persist, your doctor may consider:

A longer event monitor (up to two to four weeks) is used to capture less frequent rhythm events.
Thyroid function tests (TSH (thyroid-stimulating hormone), free T4 (thyroxine)), since both hyperthyroidism and anxiety states can elevate heart rate and cause palpitations.
Electrolyte panel and magnesium levels, as imbalances can trigger palpitations.
Cardiac stress test (treadmill or stress echo) if symptoms are consistently triggered by exertion, to rule out exercise-induced arrhythmia or ischemia.
If all cardiac workup remains normal, autonomic testing or tilt-table testing can be done to evaluate postural orthostatic tachycardia or vasovagal responses, especially if lightheadedness occurs on standing or after exercise. In many young, healthy adults, these symptoms often relate to benign causes such as premature beats, stress, caffeine intake, dehydration, or overtraining.

Management and lifestyle measures:

Stay well hydrated, particularly if you exercise frequently.
Limit caffeine, alcohol, and stimulant supplements or pre-workout drinks.
Ensure adequate electrolyte intake (sodium, potassium, magnesium), especially with heavy sweating.
Practice relaxation or breathing techniques to reduce anxiety-related surges in adrenaline.
Track your resting and exercise heart rate; if you notice persistent elevations or significant changes, discuss them with your physician.

If you develop chest pain associated with shortness of breath, fainting, or severe palpitations, seek urgent care immediately. Overall, your evaluation so far suggests a benign arrhythmia or heightened autonomic response, rather than a structural or ischemic heart problem.

I hope this helps.

Thank you and take care.

Regards.