1. Are you OK/all right? 你没事吧?

　　2. Are you feeling OK/all right? 你还好吧?

　　3. You don't look well. 你气色不太好。

　　4. You look tired/terrible. 你看上去累了/脸色很差。

　　5. Is everything all right? 一切还好吧?

　　6. You need to rest. 你需要休息一下。