Has anyone else here been plagued by chest burning? Basically I'm getting either classic heart attack symptoms, esophagus issue (I'm on a PPI) or pulmonary thing. Nobody can tell me what's wrong, though they claim they don't think it's my heart (been tested a bunch over the last 12 months). The past 24-hours have been quite painful, and it's not getting better. I don't know if I should check in with my doctor, blow it off, or what. I'm quite confused, and I really don't want another round of tests.