My stomach is upset.

我的胃不好。

youdao

My stomach is upset and I feel like vomiting and have diarrhea.

我的胃有点不舒服，想要呕吐，又想拉肚子。

youdao

While I have to take 6 to 8 daily, it is simply good and it does not upset my stomach.

虽然我每天服用6粒至8粒，他简单良好，不会使我的胃难受。

youdao

My stomach is feeling sort of upset.

我的胃不太舒服。

youdao

My stomach is feeling sort of upset.

我的胃不太舒服。

youdao