 [ Symptoms ] what causes pounding heart chest discomfort pain between shoulder blades for 3 months  i had a cardiac work up with no diagnosis i do have high blood pressure diagnosed 3 months ago treated with cozzar and hctz [ Disease ] i had some of the same symptoms was told it was stress was started on a beta blocker called atenolol chest discomfort went away pounding in chest went away blood pressure fine most of the time