Keep in mind that many, many people have the Nissen surgery who never post on the internet at all. They have the surgery, recover, and go on their merry way. It's the people who are having problems who are most likely to seek out information and support online.
Nissen fundoplication has been used to treat GERD for more than 50 years. it has been available laproscopically for between 10 and 15 years. It must be working for lots of people!
Good luck in your search for answers.
Words of wisdom by Eckhart Tolle:
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”