Had anyone been for one please? I couldn't complete the normal one as air was too painful how will this. Be different as still with air? She said it's co2 which your body absorbs as fast as it goes in so it doesn't stay there to hurt as long. when the pipe comes out on the scanner it says in my notes you'll be shown to the nearest bathroom ,it's not very near in my unit is it something I need to worry about am I just going to explode !