Hello: I have lowerleft abdominal pain, lower left back pain and my belly is distended and hard.I am 44 years old, I had had my gallbladder removed and my appendix out as well. I took a home test for UTI and it was negative. Most everything I am reading says it could be diverticulitis or kidney stone. No fever, I AM passing gas, I HAVE had a bowel movement so not constipated. This has been happening since Sunday afternoon so about 48 hours now. Ona scale of 1-10 for pain, I am at about 7. I have a pretty high pain tolerance (hx of many surgeries with Cancer- (Melanoma, Astrocytoma of spine, cervical cancer)