The test I had was called an EG Bravo, they put the camera or whatever it is to monitor acid level. It gets inserted in esophagus during an endoscopy. Mine showed some elevated acid but not off the charts as some have. I had the Manometry test next. Its not a fun test in the least but it is a good test. It showed that my esophagus is not working properly. My Dr. said it shows that my esophagus is only pushing food down like it should 20% of the time. So I have a lot of throat clearing, bloating, have to eat small amounts of food at a time, watch what I eat for GERD. Dr. put a diagnosis of "weakened parastalsis, possibly Accolasia. He said there is no surgery for this. He is referring me to a gastroenterologist who deals with this specific diagnosis. I started drinking Lily of the Valley Aloe Vera juice and I believe it is helping . I will continue the juice no matter what. I watched a video of info on the juice on youtube and everyone could benefit from drinking it.