Hello! Thank you for asking on HCM! I understand your concern and would explain that your symptoms seem to be related to cardiac arrhythmia. A possible cardiac ischemia can not be excluded. How old are you? What is your past medical history? I recommend consulting with your GP for a careful physical examination and some tests : -resting ECG and cardiac ultrasound -chest X ray study -blood lab tests (complete blood count, PCR, sedimentation rate, thyroid hormone levels, cardiac enzymes, blood electrolytes, kidney and liver function tests, etc). A treadmill test or a stress echo , coupled with an ambulatory 24-48 hours ECG monitoring are necessary to examine better your cardiac function. I advise you to discuss with your doctor on the above mentioned tests. Hope to have been helpful! Best wishes! Dr. Iliri