Im due to go for an upper GI endoscopy in a few weeks time. I had one done over 20 years ago and it was even worse than I imagined and now Im terrified of going through it again. Ive been told I can ask for mild sedation but I had this first time around and it didnt help at all. I just hate the gagging response when the tube is inserted and then trying to pretend its ok during the whole procedure was a nightmare. Is there anyway I can ask for a stronger sedative without being treated like an immature fool? By the way Im in my early forties and normally quite level headed!