i have been having abdominal discomfort along with loose bowel movements and have the urge to go to the bathroom even after i have finished, i have gas and bealch alot as well, the abdominal discomfort ranges from under the upper portion of the rib cage either side and radiates down my back and around to sides, i seen a doctor 2 weeks ago and he prescribed nexium, it helped with the loose stools but now im finished with the meds and it has returned, i also feel nausiated on occasion, what could this be?