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.
Pains in the left side of chest is attributed to formation of gas in stomach which is causing elevation & irritation to the diaphragm.
Lanzaprazole is an antacid which prevent acid formation in stomach.
can also be used but it has some side effects on long term usage.
Other than that...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.