I have the same thing, any kind of resting stress where my diastolic BP is high is bad, causes all kinds of anginal symptoms. But if I started with a low BP, then slowly warmed up, I could run to my maximum heart rate, asymptomatic and with no change in the tracing.

Having recently been diagnosed with a Severe Myocardial Bridge after having sever chest and neck pains I began to research. There is an excellent Facebook group called Mycardial Bridge Support Group...anyone can join.....the moderator is a victim and there is a wealth of information with videos and places to go to get it repaired...procedure is called "Unroofing" first used at Stanford Univ. in California....supposedly they are the experts....next is Cleveland Clinic in Ohio and then there is a guy in Gainsville, GA Dr. T. Sloane Guy that does the "robotic surgery unroofing" procedure that does not require the sternum to be cut. Best of luck. The problem is old school thought taught in med schools say that Myocardial Bridging is Benign.....how can it be benign if people are SOB and having pains in their chest and neck and walk around feeling like they are going to expire any minute? The web site I mentioned is fantastic!