Hello Maria! Thank you for asking on HCM! I understand your concern, and would like to explain that your chest fluttering sensation may be related to a possible paroxysmal appearance of a cardiac arrhythmia. A careful medical evaluation should be done, including a physical exam, resting ECG, some blood tests (complete blood count, thyroid hormone levels, cardiac enzymes, blood electrolytes level, PCR, etc). If suspicions are raised a cardiac ultrasound and an ambulatory ECG monitoring test should be done. Only after a thorough evaluation, it would be possible to appropriately address an optimal treatment. Hope to have been helpful! Greetings! Dr. Iliri