I had a colonoscopy at 1:30 today and I did the prep yesterday. The last time I took laxatives was 2 Ducolax at 10:00 last night. I was up until 3am using the bathroom. Anyway, I finally got to eat at around 4pm today and I have a sandwich. I am back on the tiolet! It is like I still have laxatives in me. Did this happen to anyone else? I am scared to eat now. I need to work tomorrow. How does the prep stay in you?