Been there, done that - same place, same surgeon, same diagnosis. 3 1/2 years ago and SO glad I got it fixed!
I had a little reflux for years, then was in a bad wreck that pushed my stomach into my chest. It took me 4 months of jumping through the hoops of testing. I was really scared of the surgery, but knew I couldn't live without horrible symptoms unless it was done.
I was already in 60's but in good shape. I was in hospital for 4 days, left on liquids. Don't worry about bringing in anything unless you have food intolerances. I don't tolerate sulfites, so couldn't eat gelatin, popsicles, their broths and juices. I froze my own clear liquids and had a relative bring some the day after surgery.
I hated the pain button. They kept putting it in my right hand and I couldn't feel it or use it and dropped it. The cause was getting 4 sticks for a radial arterial line - sloppy. I used to do arterial sticks when I worked at that hospital. I couldn't swallow at all with the NG tube, but that was pulled the 2nd day, so not really much of an issue. You really don't want anything in your stomach, so don't sweat it. A relative could help you with finding the pain button. I had nobody with me, which was part of the problem.
You'll probably be on full liquids in a matter of days - clear liquids plus milk. Look up UPMC's post Nissen diet. It's online. When I went home I had to get my own food. I had things stocked up - Boost, mainly. I could only tolerate one a day because of my "allergies," but most people can consume it just fine. There aren't many places to shop in Oakland, but you have someone who can drive. They'll have to get your liquid pain scripts too, so locate the nearest pharmacy! They've got lots better stuff than morphine. If you've had experience with pain meds, make sure you take a list of your reactions with you to the hospital. I have two typed pages, including otc meds.
You'll be allowed coffee soon enough. Coffee and tea are clear liquids, without cream. I need my 2 cups of coffee!
Long-standing issues: only inability to vomit. Not really much of an issue. I quick chew up a Zofran if I am sure I am going to heave. I had a flu a couple of weeks ago - one that's not in the shot. I had dry heaves, but Zofran controlled it.
Hubby can look for the usual complications: bleading, breathing problems. Not much to worry about. This group of surgeons has a success rate higher than any I've read about. Recovery is a bed of roses, including some thorns. I wouldn't go back to having my GPEH on a bet!