Dear friend, welcome to HCM!
You have done all appropriatre consultations and tests and all negative.
function test dione?
Are you on any drugs? or recreational substances? Are you a frequent drinker/ smoker?
Have got checked during your severe symptoms?
Intermittent results can be normal. get evaluated during the episodes of symptoms.
Can you upload all your results, images here using the uploader available below the text box on the webpage?
Dear, we will need all this info to answer your query more precisely. I would be glad to offer help once you add all these details.
Importantly, do not be too much anxious about the issue.
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.