Nothing seems to have made any difference for me so far, unfortunately .
I also had upper endoscopy, barium swallow and other tests but none of those found anything at all. PPIs and such don't do anything. I've tried other 'home remdies' like apple cider vinegar, drinking alkaline water, not eating ( or eating ) certain types of food. no help :/.
I am otherwise healthy with 'normal' bmi and workout almost everday and stay active.