2 years ago I had repair of a giant hiatal hernia with fundiplication. My stomach had gone entirely into my chest. The head of Thoavic surgery at MUSC in Charleston did it robotically . Other than the dietary restrictions at first I had no problems, no more Gerd, very little heartburn but very gassy. Unable to really belch so most gas is passed thru farts. Bloating at times due to the gas, I restrict foods I know to cause excess gas. If you are dealing with this type of problem, seek a good Dr and get it done, if you become an emergency surgery, it can be lots worse.