When I was having major stomach issues they also did a ct scan I think. It was to check my pancreas. Also my first nc test showed less then the repeat with the ssep. My neuro said the ssep is done when the nc doesn't show as much as the pain. I may be somewhat confused though on exact.Can I ask about your parents since your young and what they think? I understand there is little they can do but I think support mentally is very important. I know people in general but also being young people don't understand. Especially when your young running around and worring about different things if that makes sense. Well hang in there and I hope you find some relief and answers soon.