i think if you jz drink more water during that moment, small portion, little by little...+ v) G2 h1 T. e8 m( ~/ `
or you can try to hold your breath and try to inflate your abdomen( make your stomach bigger with mouth closed) ' W) p# T: M* ^5 [3 W; }$ n+ i公仔箱論壇i tried all above method and they helped....