表达身体不适的英语说法：
1. Under the weather
Weather是“天气”的意思，但under the weather却和天气没关系，它的意思就是“不太舒服”。
例：She's a little under the weather today, so she won't be joining us.
(她今天不太舒服，就不和我们一起了。)
2. Come down with
得了某种病，除了用catch或者suffer from，你还可以说come down with，后面直接跟什么病。
例：I think I may be coming down with a cold.
(我觉得我没准是感冒了。)
3. Rotten
一看见rotten，你可能一下子就想到“烂”这个词，它除了有“令人不快的”，“质量低劣的”意思，还能表示“身体不舒服”、“虚弱的”。
例：I feel rotten today.
(我今天感觉不舒服。)
4. Lay up
Lay up有“搁置”的意思，如果是跟生病或受伤扯上关系，就是表达“在家养病养伤”或“卧床不起”。
例：He was laid up by the flu.
(他得了流感，卧床不起。)
5. Pick up
Pick up有“捡”的意思，捡钱你可以用它，得病也可以。表达被别人传染了，就可以用上pick up这个 短语 。
例：I think I picked up a cold from someone at work.
(我感觉自己是上班被人传染才得了感冒。)
表达身体不舒服的例句
1. His wife wasn't feeling too well and she wanted to go home.
他的妻子感到有些不舒服，想要回家。
2. She is not herself. She came near to a breakdown.
她身体不舒服，简直要崩溃了。
3. They were sickened by the scenes of misery and degradation they found.
目睹困苦、潦倒的景象，他们感到心里极不舒服。