I've had numerous partial obstructions that did not show on CT. My GI goes by my symptoms and said maybe I caught it early enough that it didn't show on CT. Most of my obstructions do go away on their own, so maybe by being careful, you can get past this. I would suggest having a few days of just liquids to see if that helps your pain. Just gradually add foods after a couple days, being careful what you eat.
I went through many partial obstructions (the pain is very distinct to me so I know what the pain means) and my doctor didn't believe that I was in as much pain as I was, but after having more obstructions that did show on tests, she started believing me when I said I felt I was getting obstructed. Over time she has learned that I do not complain about pain unless it's intense...but i know how frustrating it is to be told "you're fine." It's very frustrating because I don't always show that I'm in pain, and I don't always look sick, so they think I'm exaggerating the amount of pain I'm in. For quite some time, they made me feel like it was all in my head. It's sad that doctors don't believe us, when we have a crohn's diagnosis. Hang in there, and I hope things get better for you.
32 yr old female-dx with Crohn's in '97 after emergency resection and appendectomy, 2nd resection '05, Bilateral pulmonary emboli 10/09
Currently on Humira, Omeprazole, Effexor, Seroquel, Calcium, Vit D
Coumadin stopped 3/15/10!!!!