I am drinking the stuff for the colonoscopy for tomorrows test. I know I am suppose to drink all of it but.....I started the drink at 5pm. It is now 9:30p & I still have more drink to go. Like maybe 16oz. or more. But my bowels have been clear for awhile now. Does anyone know if I have to finish it. I dont want to ruin my test but, do you think my bowels are flushed. Can any stool be there or hidden??