Hi Mark. After my surgery this happened to me too, I was in lots of pain and they inserted an NG tub and I was vomitting a lot. the next day they gave me an x ray and the surgeon decided to open me again as he was afraid there was an obstruction. Well after cutting me again, he said he found nothing and that it was just that my intestines were lazy and I have a low threshold for pain (stupid doctor)!!!!!!!!! Well after about 9 days, I finally passes stools and gas and was out of hospital. I had a couple of weeks of pain but slowly things became better, and now 4 months after surgery I'm feeling very well actually. so hang in there and hope things get better soon....