Have a good read through what you can and cannot drink ( darker coloured drinks are not , they stain the bowel lining)
When you make up the jug of the prep ( my last one was 2 litres ) and after the first couple of glugs you think I cannot neck 2 litres of this filth
Its like a lemon-ey bicarbonate of soda (basically tastes like drinking kitchen cleaner)
And IIRC , an extra lot of water .
Some people drink it chilled or through a straw . For me it was better to drink a shotglass ( so a mouthfull) and either water or cordial ( I used Pink Lucazade) to chase it .
Then you sit very very near the loo .
With Sudocream.
I didn't feel faint or sick, I felt hollow and floaty
I have had 2 with sedation and one with nothing
It pinches /cramps
I'd recommend sedation, you just float off and think meh
I will likely need another one soon (Oh Joy)