Q. I have irregular heartbeats, especially when I exercise. What could be the problem?

Answered by
Dr. Ilir Sharka
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Mar 31, 2018 and last reviewed on: Nov 11, 2022

Hello doctor,

I have had irregular heartbeats for quite some time. I get palpitations and a feeling that my heart is missing beats. I get breathless and dizzy when this happens. Sometimes, the trigger is exercise, either walking or climbing stairs; other times, it occurs when at rest. I am currently taking Aripiprazole and Citalopram. The heart problem began before I started taking these medications. I was recently given a heart monitor to record episodes. I can send you pictures of the episodes for you to read if possible. I would like some answers as my local cardiology department is taking some time.



Welcome to

I understand your concern and would recommend performing some tests to investigate for possible cardiac arrhythmia or other metabolic causes that may trigger this situation.

  1. A resting ECG and a cardiac ultrasound.
  2. An ambulatory 24 to 48 hours ECG monitoring to investigate for cardiac arrhythmia.
  3. Blood electrolytes for possible imbalance.
  4. Thyroid hormone levels for thyroid gland dysfunction.
  5. Complete blood count for anemia.

If these tests result normally, you should consider anxiety as the main cause of your complaints.

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