I followed the instructions to the letter. 1 week on low residue diet. Stopped eating at 1pm yesterday. Took first dose of plenvu at 6pm last night with lots of extra water. Had diarrhoea about 6 times before I went to bed. Diarrhoea again this morning before taking my second dose of plenvu at 6am. I lost count of how many times I went to the toilet after the second dose and really thought it had worked. But then around 11am the diarrhoea came again this time with a solid pebble poop. This carried on over the next hour or so and I felt like i needed to poop. I stopped drinking at 10am. At 2pm I went for my endoscopy and colonoscopy and the dr said I was constipated so he couldn't see all of my bowels. Im now waiting for a ct scan. Ive googled it and it says they need an empty bowel for this too. My bowel habits are always few and far between (maybe once a week, twice at the most) so what if the prep doesn't work again and they can't see properly. Im really worried now as the prep wasn't nice at all and ive never pooped so much in all my life so I can't believe I wasn't empty.

Does this happen to other people?