Hi. I have been referred for an urgent endoscopy as for the past couple of months I have been regularly choking on my saliva/drinks (that feeling like it's gone down the wrong way and uncontrollable coughing). I forgot to ask when the hospital phoned me how long the procedure would take. Is there anyone out there who has had an endoscopy for similar reasons who can tell me how long theirs went on for and whether they found anything?! Thanks