long time now, I get severe upper middle chest pain, whne I walk few yeard keeps on increasing as I co9ntinue walk pulse bit rapid, WHEN I sit for a few miniutes it goes down gradually agin if I waqlk it comes back severe NOT HEARETBURN, MY HEART OK says Cardiologist, gastyro entrologist suspect GORD or to do endoscopy of isophagus SOMTIMES pain comes WHEN sleeping I do jogging in the morning NO PAIN COMES I BURP a lot whne I get up from bed after meals NO OTHER symptoms BLOOD pressujer ok controlled by ATENOLO NOTEn onme tablet a day even sinujs tachycardia controlled no diabetic NON smoker Non acholic WHAT coulfd this mystery CHEST PAIN BE very long Whne I ehert or WALk setlles down if I REST for 5 min or so sometimes very severe feels panicky nervous about this pain DOES NOT settle for nitro lingual spray PL ADVICE ME I am 77 years a male pensioner I do qwalkinga lkittle with difficuly becos of this PAIN COMING always have normal sex life sometiomes END OF SEX pain comes