It could be kidney stones..IDK..I went to the ER and had a CT and it didn't show the 10.7 mm stone my urologist found with his ultrasound.. whew!! The ER dr was sending me home and discharged me.. and I went to the bathroom in there before I left and almost fainted..and went back in and said "I wanna talk to him..".. he gave me morphine..and said go see urologist..and changed the discharge papers to include "renal cholic".. ohh it hurts so bad.. and it took atleast 2 months to pass the stone.. I have IBS-C and I thought it was stomach trouble for the 1st week..I went to another urologist and he did a CT and no stones showed up..( he was going to take them all out) .. I went back to the urologist with the ultra sound and he mapped them out for me..4 each kidney.. it's a medical catastrophe out there... And oh.. I had a HIDA scan on my gallbladder..and they took it right out..another long stupid story.. but it's out..prayers for you!!