Adhesions from surgery usually don't show up in a colonoscopy. I had 3 major abdominal surgeries over several years. The third was by laprascope in which the surgeon noted he could see adhesions and where they were. Three years later I developed the stomach cramping, constipation, and vomiting. I was hospitalized 3 times and had 1 ER visit while on vacation. On the first hospitalization they took X-Rays of my abdomen to see how much air movement was in the small intestine: none. Diagnosis: partial small bowel obstruciton. My doctor did not operate as the bowel was not at the dangerous size. Three days of pushing IV fluids into my tissues broke the blockage. I kept track of the blockages and over 3 years had 17 of them. During that time I had 3 colonoscopies and 3 EGD's. I was also battling low Hemogobolin due to anemia. After the last ER visit, I asked my doctor to refer me to a surgeon that could do laprascopic surgery to releave the adhesions. After the surgeon read my documentation, he scheduled an Exploratory Laprascopy with Lysis of Adhesions. As long as they don't run into a big tangled mess, the surgery can be done with 3 little incisions. I was home by 2:30 the same day of surgery; and haven't had a blockage since. I had loops of intestine that were stuck together with adhesions which other loops would slip through and cause blockages. If you go more than 3 days without a movement, you are asking for serious complications. If a bowel is pinched off from it's blood supply, that part could actually die and you would get blood poisoning. It may not be your insurance that's blocking the surgery; you must document your problem. Keep a diary of your blockages and include a record of everything you eat and drink. Drink a lot of water (not tea or coffee or sodas) 4 oz every 30 minutes that you are awake. Then your doctor will see that you are serious about your condition. Good luck.