is it wind pain? if it is, do you have any deflatin, windeze, or anything like that, if you do, try them, if not, a hot drink, and walking around, might start to shift it, and take some painkillers if you have any. a hot water bottle helps too. anything with peppermint or ginger in will help too.
i hope it starts to go soon. if it isnt wind pain, take painkillers, and if your worried contact your team in the morning.