The patient's stomachache stopped after he took medicine.(病人服藥后胃痛停止了。)

I have a little stomachache. But it doesn't matter.(我有點胃疼，不過沒什么。)

She gets a stomachache very often.(她經常胃痛。)

I felt good after drinking the milk, but soon I had a stomachache.(喝完牛奶我感覺很好，但很快我就胃痛了。)

I had a stomachache yesterday.(我昨天胃有點不舒服。)

I can't stand this stomachache.(我受不了我的胃痛。)

You always have a stomachache because you don't have breakfast.(你總是胃痛是因為你不吃早飯。)

I think she has a stomachache.(我想她是肚子痛。)

I have a stomachache. May I have some medicine?(我胃痛，能給我開點藥嗎？)

His stomachache made him feel wretched (i.e. ill) all day.(他胃疼得整天十分難受（即生病）。)