For the past seven weeks.I have been suffering from extreme upper bloating and occasional lower abdominal pain. I had a CT scan in the ER three weeks ago, which showed Pleurisy and diverticulitis. Took anibiotics for 10 days, lungs cleared up but still have bloating/gas. Have seen two gastro doctors, had blood, urine, Gastric Emptying and Upper GI series tests. All normal. Second doctor put me on Hyoscyamine. Taking for three days, hasn t helped at all. Going for another CT scan tomorrow. Can the diverticulitis be causing upper stomach bloating, or are the doctors right in diagnosing IBS? Then which drug might help? This is really difficult to deal with. Thanks.