Colonoscopy dec'15 removed 5pol, some hyper. Wk 2 change in bm, narrow, ribbon like, sometimes thicker but flat sides. Pain low lt pelvic. Cancer hist?

What's your question. This sounds like diverticulitis. There is a possibility of inflammation in the colon from the biopsies but this is uncommon and diverticulitis is common. You should see your doctor back to see if you need antibiotics or further investigation of the pelvis.