Symptom 9: Changes in Heart Rate or Rhythm

Changes in heart rate or rhythm can also be a symptom of MEN. These changes can be brought about by an excess of certain hormones produced by tumors in the adrenal or thyroid glands. This can lead to conditions such as tachycardia, where the heart beats faster than normal, or arrhythmias, where the heart beats irregularly.
The changes can be subtle and may not be noticed in the early stages. However, as the condition progresses, symptoms can become more apparent. These could include palpitations, shortness of breath, chest pain, dizziness, and fainting. It’s crucial to seek medical attention if you’re experiencing these symptoms, as they can potentially indicate serious heart conditions. (9)