I'm so sorry you are going thru this! I don't know if gerd can cause palpitations... But I do know that anxiety does! I, too, went to the ER one too many times... And same as you! All normal tests... Hang in there! Anxiety can cause all sorts of symptoms and weird things to us!
God bless you!
Keep us posted! It helps to talk about it!
I don't know about GERD causing palpitations but anxiety can certainly do that. Anxiety effects us physically in many forms, from nausea to rapid heart beat to soreness in the muscles. It would be a good idea to seek out a therapist to help determine why you have anxiety and how you may combat it.
Test are coming back normal try your best to. Believe them and accept them and maybe seek