I've recently been experiencing a dull pain
over my left breast
, fullness in chest and throat, heart palpatations, pain in the left shoulder and excessive belching. Although I have had many tests done, everything has pretty much come back normal. The only thing that the doctors could come up with was Superventricular Tachycardia. I think it may be more, but I'm not sure. Despite medications the symptoms still have not gone away. Does anyone have any suggestions?