If you are overweight then losing weight will definitely improve your general health as well as symptoms of GERD. Unfortunately it will not cure the hiatus hernia. If symptoms persist or complications develop you may need surgery for GERD/hiatus hernia.
Next Steps
please visit a general surgeon or gastroenterologist who can help you develop a treatment plan for weight as well GERD including diet and lifestyle modifications and medications initially but nay recommend surgery when needed
Health Tips
Avoid oily spicy food and alcohol tea coffee. Eat last meal at least 2 h before sleeping