@Scott F - any chance this could just be the worst case of gas ever? I just drank a bunch of contrast liquid for the MRI and it all came out after, with minimal gas. If I push around the abdomen, I can get some gurgling going, and every little while, I get a big urge to empty, little pain, and then it recedes. Still only passing liquid, though haven't eaten since Thursday.
I was able to lay on my stomach and get some gas to pass; not enough to get relief, but something. Any other positions, exercises, voodoo dancing that is known to help move whatever it is, along?