Thank you for your response. It got very nasty in the peer group that the person tried to convince me that my heart arythmia is related to my memngioma and that my Mayo trained Clevelantd Clinic cardiologist doesn’t understand my arythmia—but the non-medical member of that peer group does. “Missy” insisted i was Not listening to my neurosurgeon and that i would die if i didn’t get my M removed to manage my arythmia. I have thyroid autoimmune disease including hyperthyroidism/Graves disease. That is what ER, endochronologist, and cardiologist have determined is driving the arythmia. A tiny dose of beta blockers regulates the arrhythmia. i very much appreciate your response