Hello @tplefka - have you had any luck receiving a diagnosis or treatment? My husband has had the symptoms - almost exactly as you described for over a year now. He's 43, super healthy, and has, like you, been to the ER a handful of times thinking he's having a heart attack or something. Every time he gets bloodwork, stress tests (plus has had an EKG, CT scan, MRI - has NOT yet had an angiogram though) etc and is told there's nothing wrong w his heart. But no one seems to be able to think thru other potential causes. He was prescribed the beta blockers as well but has been reluctant to use them. Like you he describes feeling bad, almost every single day. Its just so weird and frustrating. Just curious if you have had any type of doctor be able to provide any potential causes or diagnoses.
I hope you are doing well and finding answers!