GERD is chronical condition and it impacts everyday life in very bad way as you know ....(i have grade B esophagitis, 33 yo, i have it i guess about
6 months and take PPi's - here is a link to my topic
If you can achieve any big gastro clinic in your area i would suggest that you take the chance to talk with the good surgeon. You need to know all the options that you have not only Nissen Fundoplication! Maybe you are a candidate for less invasive surgeries like LINX or ENDOSTIM.
Just search for a good gastro-clinic.