Clear endoscopy but considered for surgery?

Basically I get the gastro doc today who said I had a clear endoscopy but he is sending me for an Esophageal manometry / PH test. If that comes back with something he will do surgery

Has anyone had a clear endoscopy but then a positive Esophageal manometry? I’m happy he said he will operate but I’m a bit confused if my endoscopy was clear??