i think if you jz drink more water during that moment, small portion, little by little...公仔箱論壇1 d* F' z6 W6 |7 ], a
or you can try to hold your breath and try to inflate your abdomen( make your stomach bigger with mouth closed)公仔箱論壇! z: o8 s1 J7 x, W ]
i tried all above method and they helped....