Hi I am a 17 yr old female and have pains in my stomach 4 over 3 monthsits a stabbing pain in my upper abdominal and spreads dowm to the navel an to just above my small intestinal area plz help the pain started a few days after a tonsilectomy ive had a gastroscopy cleared and ultra sound clear also berium meal clear I had a slight case of gastritis I had slight constipation the doc say its in my head but its defo not :?