Hi, nausea has been a big problem for me and was my main symptom, with pain being the other main symptom. The nausea was not helped by the PPI until I tried taking it at night instead of before breakfast. That made some difference and also acupuncture has helped a lot too. I have recently discovered that night time Gaviscon makes my nausea worse, so now I avoid that!
I would return to your PCP and discuss the cause of your nausea and about
trying the PPI at night.
I do sympathise as the nausea really affected what I could manage and as eating relieved my nausea, I have gained weight as a result of my particular variety of GERD
MMM