I would suggest you ask your doctor for an Endoscopy to determine what is happening. I've had the procedure, but am also a heart patient, and I must suggest that GERD symptoms and angina aren't easy to separate. As Selma suggests, I'd have your symptoms checked.
Hi and welcome to the GERD forum.
I have not had this surgery and do not know enuff about what can happen, and I suggest u call ur Dr and inform him/her as to what is going on.
DO post an update on what u find out.
Take care