Re: I have symptoms related to GERD but nothing showed up when i had an endoscopy
Yeah, the fact that they saw nothing just indicates that they can't see any physical damage. Not that you don't have problems with acid reflux. Sometimes they can see the reflux, like they did with me, but not always. Just be happy they didn't see any damage.
I don't see a PH test as a definitive test for GERD (as far as making a diagnosis of GERD). Many or most people who suffer from GERD actually have low stomach acid. That's my problem. Few people make too much acid. A PH test would be very helpful, however, in helping you determine how best to attack your problem.