на хеликобактер проверялись? http://www.sitemedical.ru/content/%D0%9F%D0%BE%D0%B4%D1%80%D0%BE%D0%B1%D0%BD%D0%BE%D0%B5-%D0%BE%D0%B1%D1%8A%D1%8F%D1%81%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5-helicobacter-pylori-%D1%85%D0%B5%D0%BB%D0%B8%D0%BA%D0%BE%D0%B1%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B8%D0%BE%D0%B7%D0%B0-%D0%B8%D1%81%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D0%BA%D0%B8-%D0%B7%D0%B0%D1%80%D0%B0%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F-%D1%81%D0%B8%D0%BC%D0%BF%D1%82%D0%BE%D0%BC%D1%8B-%D0%B0%D0%BD%D0%B0%D0%BB%D0%B8сделайте уреазный дыхательный тест,стоит 1400р