I have a appointment for a colonoscopy on Thursday and I am terrified. I am sitting here feeling sick I can't sleep or eat and I am crying. I am a 56 year old woman who has anxiety and depression. I have to start the moviprep tomorrow and try to be sick just thinking about it. I am having sedation which I have had for dental work but have been told it's not the same and won't be out as I am at the dentist. Please can anyone help I want to cancel.