Hello! Thank you for your question on HCM! I understand your concern. I think that the troubles with breathing may be just anxiety. But I would recommend to consult with a neurologist, have a physical examination for neurological signs and have a brain MRI to exclude other causes of these symptoms like a possible brain tumor or and intracranial vascular problem like an aneurysm. Thyroid function tests are also helpful in excluding thyroid disorders which can cause similar symptoms. Hope to have been of help! Greetings! Dr. Aida