A dream that you or someone you know is ill is usually a sign that there is something wrong in the real world. This can be a physical illness, or it can mean that something is wrong with a relationship or with a choice that you have made. It can be a sign that there is a problem in your environment.
The type of illness can provide you with a clue as to what is wrong.
For example, a sore throat can mean that you haven’t been communicating effectively, while a headache can mean that you haven’t been thinking clearly, and a fever can mean that you need to control a fiery temper.
If you repeatedly dream of being ill, it can mean that you are under too much pressure or that you have taken on too much responsibility.