ok, she will have a pH probe test. its a nasogastric tube to the stomach with sensor probes. a computer worn on her tummy will record over 12 or 24 hours the pH levels and i must push a button everytime she's upset so on the printed graph they see if the pH is very acidic and she cries, then they know what to treat. they might also do a barium swallow, where she takes a dye, and they see on xray how long it takes to go through the stomach. a lady will ring me to organise when to do it, and i ring the paed too. so hopefully we gets answers. she's been real grumpy since w/e.