Thanks for your question on Healthcare Magic.
I can understand your concern.
No, your right sided
abdominal pain is not related to Nissan 's fundoplication.
This pain is mostly due to
indigestion and
constipation.
Constipation causes impacted feaces in intestine. This causes enlargement and stretching and this in turn causes pain.
So we should treat indigestion and constipation to relieve your pain.
So drink plenty of fluids orally. Avoid hot and spicy food. Avoid junk food.
Eat high fiber diet like vegetables, fruits etc.
Go for walking after meals.
You can take laxatives also.
Don't worry, you will be alright with all these.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.