Hello! Thank you for asking on HCM! Regarding your concern, I would explain that your symptoms seem to be related to orthostatic hypotension. I recommend consulting with your attending physician for a physical exam and some tests: - a complete blood count for anemia - Head Up Tilt test for possible orthostatic hypotension - blood electrolytes - kidney and liver function tests - thyroid hormone levels. If orthostatic intolerance is excluded, I would recommend performing a brain MRI for possible intracranial hypotension, which can lead to this symptomatology. Hope to have been helpful! Best wishes, Dr. Aida