At night sleep, my stomach started cramping, mom found me strange, hurriedly sent me to hospital emergency.

到了晚上睡觉的时候，我的肚子开始一阵阵绞痛，妈妈发现了我的异样，急忙把我送到医院急诊。

I had one this morning before school and my stomach was cramping all day. That's not good when I'm trying to pay attention in class.

我今天早上上学前喝了一杯，胃就难受了一整天，让我很难集中精力上课。