i think if you jz drink more water during that moment, small portion, little by little... 1 I# E$ `' u% U* s公仔箱論壇or you can try to hold your breath and try to inflate your abdomen( make your stomach bigger with mouth closed) # A- b, @7 ^% ~+ [% R1 ]公仔箱論壇i tried all above method and they helped....