Hello! Welcome on HCM! Regarding your concern, I would explain that your symptoms seem to be related to a metabolic cause (chronic anemia, vitamin Deficiency, electrolyte imbalance, thyroid gland dysfunction, diabetes, etc.). Coming to this point, I would recommend consulting with your GP for a physical exam and some blood lab tests (complete blood count for anemia, thyroid hormone levels, blood electrolytes, liver and renal function tests, fasting glucose, inflammation tests). In the meantime, it is necessary to monitor your blood pressure frequently during the day to exclude low blood pressure as a possible cause of your troubles. Hope you will find this answer helpful! Wishing all the best, Dr. Aida