stomachache

Eating too much spicy food late at night gave him a terrible stomachache.

(Chinese) 深夜吃太多辛辣食物让他胃痛得很厉害。

The child complained of a stomachache and was sent to the school nurse's office.

(Chinese) 孩子抱怨肚子疼，被送到了学校医务室。