What would you do if you can’t swallow mannitol for a CT enterocolonography?

I’ve had a colonoscopy more than 10 days ago and my GI mentioned that my colon looked “so good”. I kept being constipated for 7 days afterwards. Took a strong laxative the night of the 6th day. The next morning, I had a normal bowel movement. But soon started throbbing abdominal pain in my lower right quadrant. This pain still persists. I took every possible antispasmodic I have, solpadeine and painkiller injections. To add insult to injury, I took the laxative the following day and the pain was severer. The day after, I had an explosive bowel movement. That was Friday night and ever since, I haven’t had any bowel movements. I didn’t even pass any gases since Saturday and feel nauseated.
I have an appointment with my GI and I feel I need to have a CT enterocolonography. I haven’t had any since 2014. My GI always orders it but I have a bad experience with mannitol. At the radiology center, they insist I have to swallow mannitol and no matter how hard my doctor tries to convince them to let me drink the colonoscopy prep, they refuse. I can’t by any means drink mannitol. Last time, it was traumatic and I threw it up and kept throwing up even water for 5 successive days and had to take Zofran injections every 8 hours over the 5 days.
Is there a way that would make me able to swallow the mannitol + castor oil? My GI once mentioned but he never repeated it that he would place a nasogasto-tube in my stomach to let me take the mannitol. The idea is very dreadful but at the same time, I’m very much aware that I haven’t seen inside my intestines for 10 years and I have had Crohn’s for 17 years.

Just curious, what the neck is mannitol? Never heard of it😋

Thank you all. Turned out it’s not a form of blockage or obstruction but it was caused by the laxative I had taken.
I’m still thinking of bringing the issue of not having a CT enterocolonography for 10 years but when my colon becomes better.

Btw, mannitol is used as an oral contrast for CT scans. It distends the bowels and provides visualization with a good quality.

Post Edited (minnietoty) : 1/8/2024 4:42:25 PM (GMT-8)