i think if you jz drink more water during that moment, small portion, little by little...公仔箱論壇6 b2 p* _' D0 `: m
or you can try to hold your breath and try to inflate your abdomen( make your stomach bigger with mouth closed)tvb now,tvbnow,bttvb7 `# _: h) c8 I9 _: _
i tried all above method and they helped....