I would like to share with you that I was taking Nexium in the morning, had a flareup (maybe from carrying something very very heavy) and so I added famotidine at night. Since I still wasn't feeling well, I decided to try to switch the Nexium to famotidine, which I did gradually. Then, taking famotidine morning and night I still was not feeling great, so I decided to not take the famotidine in the morning and instead took a probiotic on an empty stomach. I felt a bit better with this. I then started taking melatonin at night and stopped the famotidine at night. The melatonin seems to reduce the gerd, although I do still have gerd symptoms at night. So, now I'm not taking nexium nor famotidine, and I feel better than I felt before. Still not perfect, but hoping that I'm in the right direction.
So, consider if reducing medications might make you feel better. (but reducing any PPI needs to be done very gradually or you'll have an acid surge, and expect to have a few days of feeling worse, so take other meds to get you through those days)