@elise1030, there is another long thread still active on this site called "My Experience With Blockages and PU Surgery" and it's on its third page now. It would probably be useful for you to read the entire thread and learn from other peoples experiences with blockages, and what finally led to the PU surgery being necessary, and how hard it was on them to hve to put their cats through that, but in the end the cat was better off and finally comfortable and free of the CONE etc. I hope you never have to go through that with Theodore, but knowledge is always a good thing, especially when you can learn from others' experiences.