hi welcome to our site read your query that is a very significant question and i appreciate your problem i will try my best to answer your query its likely due to the issue with supraventriculatr tachycardia that your holter monitor shows it is highly unlikely that this is happening because of GERD maybe you should get a ugi endoscopy to comfirm if you have GERD in the first place cause treatment for GERD is relatively simple i hope this helps you inform the reports mentioned above (if any) so i can be of help further best of luck (please do understand that some problem remains as online texting cuts down history and examination thereby reducing the effect and efficiency and increases reliance on tests) (If the answer has helped you, please indicate this) dr.saumyamittal@gmail.com