Have had moderate to extremely severe pain for 30 years under left ribs and below. The only time it is absent is on long term ABX treatment for other reasons-Lyme disease. Pain diagnosed as IBS, diverticulosis(itis). Last 5 years (happens at least once a year for a couple of months), has been accompanied by severe abdominal bloating, unwell, nausea, sweating, etc. Always treated as diverticulitis (do have sigmoid diverticulosis), with short (usually repeated) rounds of ABX. Have had CTs when severe symptoms still present. CT's always shows no sign of active diverticulitis and nothing else but cortical scarring on left kidney. Emerg visit this month showed (big surprise) on CT, two left kidney stones 2-3 mm, one in kidney and one between bladder and kidney. This is the first time CT has been done laying on stomach. If part of this has been kidney stones all along, why might I be getting severe abdominal bloat with these episodes? I have not passed stone yet (week 3) but put on Flomax 3 days ago and bloat seems to be reducing. Thanks for your suggestions.