I am really terrified of taking the prep for the colonoscopsy on Sunday morning next week I have picolax and the two tablets to take at one and ten past one the picolax,mthen again at six in the evening. I have a anxiery disorder and feel very depressed about all this, frightened about not being able to cope with the feelings and the diarehea.meverything really.many advice will help me as I don't think I can do it. Thanks.