Oh my God ...I have to have a test to check out the cause of my hoarness that iv had for many months on and off...It requires the doctor putting a thin tube while i swallow it down to see what the problem is.....the problem isnt my issue ( at this time ) ...Its the gagging that will be out of my control with possible "V". Im frightened by this test!!!!! Its horrible! Please, Has anyone out there ever had this done??? and how long does it take??? Iv only seen my M.D. and he said i would need to talk to them....Cant they scan my throat...does anyone know??!