I have all the issues you have and the myocardial bridging causes the thickened heart muscle and therefore v tachycardias. I couldn't/t take meds as I also have bradycardia and stage 1 diastolic disorder now. I have had holter tests and they all show v tachycardias at times but not too high. I am to go back to electrophysiologist cardiologist for review of latest holter. I am too old for apical septical myectomy(remove part of the heart muscle in area concerned). Mayo Clinic does it. supposedly replaces need for a heart transplant. If younger I would try that.