What should I expect after hiatal hernia surgery?

Diet changes. Hiatal hernia surgery usually includes a stomach wrap (fundoplication). After surgery i keep my patients on puréed foods to allow the stomach to heal. After two weeks transition to a normal balanced diet. Chew well! i start removing antacids around this time. With the wrap it is a trade off of too tight vs too loose. There is 5-10% chance of needing a second procedure to loosen or tighten it.
Usually. Usually this surgery is done with an anti reflux wrap. So your reflux should go away or improve. 60% of people have bloating in the beginning and some difficulty swallowing larger pieces of food. All this should go away with time. You will also experience difficulty vomiting and belching.