It definitely does not come on right after eating. Can I ask more about the on again and off again partial obstruction? Does it go away on it's own? How is something like that treated? I haven't been examined by my current GI ever. My family Dr. orders my "yearly" colonoscopies and the GI performs the procedure and orders the Asacol for me, but I've not been "treated" for my Crohns for 17 years when I was first diagnosed. I'm a little anxious about having to take Prednisone. I absolutely do not want to unless its the only option. What sort of tests would be ordered to find something like this?