Hello! Welcome and thank you for asking on HCM! I passed carefully through your question and would explain that your symptoms could be related to a cardiac arrhythmia or low blood pressure values. Coming to this point, I would recommend consulting with your attending physician and performing some tests: - a resting ECG and a cardiac ultrasound - an ambulatory 24-48 hours ECG monitoring to investigate for possible cardiac arrhythmia - complete blood count for anemia - thyroid hormone levels for possible thyroid gland dysfunction - blood electrolytes for possible imbalance. You should discuss with your doctor on the above issues. Meanwhile, I would recommend you to closely monitor your blood pressure through the day and refer them to your doctor. Hope to have been helpful to you! Wishing good health, Dr. Iliri