Hello dear...
I have gone through your post in which you have mentioned as being diagnosed with GERD.
Gastro esophageal reflux disease, is caused by the reflux of acid from stomach to esophagus due to relaxation of the sphincter at the lower part of esophagus.
Medical management consist of taking
Proton pump inhibitors like Omeprazole,
Pantoprazole,etc. (which prevent acid formation in stomach)
Metoclopramide can also be used but it has some side effects on long term usage.
Also avoid consuming irritating substances such as acidic & rich foods, caffeine, nicotine, and alcohol.
Try to sleep on the left side, or with your upper body raised.
If symptoms still persist, it will be better to
consult a Gastroenterologist.
There is no need to worry...you will be fine.
Wish you a good health & speedy recovery.
Thanks & Take care.