I am a 17 year old female who recently went into the hospital at the beginning of the weak with nausea. It had been progressively getting worse after meals and eventually even between meals two weeks prior to going in. The hospital did tests and found out there's nothing wrong with my pancreas and I'm not pregnant. They were thinking it could be H. Pliori so they did a blood test. I was also taking omeprazole and in the couple days prior to the blood test I started feeling better. I went back to the doctor and they said to go on a high fiber, more water diet and stop taking the medication. I did that and it's a week later and suddenly my symptoms are returning. There's no pain now, only nausea after eating and even then it's selective. I had a steak dinner last night and i was fine. I had salad tonight and feel completely nauseated. Should I try to get a stool sample for H. Pliori or would this be something wrong with my gallbladder?? Id really like some answers because I can't stand when something affects my stomach.