Hello! Thank you for asking on HCM! First of all, I would recommend to consult your attending physican for a careful physical examination, including your heart rhythm and rate, blood pressure, and possible presence of congestion, etc. A resting ECG would be necessary to judge on existing heart rhythm. The reason of your paipations seems to be an uncontrolled fast rating atrial fibrillation, and for that reason a comprehensive review of all clinical variables should be done. A cardiac ultrasound (to investigate cardiac performance, aggravating valvular disfunction, possible hypertrophy, etc), a thyroid hormone levels check, renal function tests (BUN, creatinine), and blood electrolytes, PCR, etc, are necessary to define a probable triggering factor of your complains and to decide the appropriate therapeutic regimen. You need a review by your attending cardiologist. Hope to have been helpful. Feel free to ask me whenever you need. Greetings! Dr. Iliri