It is a widespread belief that fever in a dream means sickness. It is also said that if you see someone else with a fever, then it signifies you’ll get sick soon.
Some people believe that fever in a dream represents an overworked person. The lack of rest and the worries about the future are said to cause the high body temperature in the dream. For example, the person might be feeling exhausted or under pressure in their real life and is using their dream to give themselves a break. They might also be afraid of something they are being pushed to do. The fever symbolizes this fear, which haunts them day and night.
Some people say that suppressed emotions can also be one of the reasons for increased body temperature and thus, fever in a dream. For example, the person is suppressing their anger or sadness about an event in their life that has not been resolved for a very long time. They are unsure how to get rid of these feelings and express them because they don’t know how to talk about it with others or feel embarrassed about it happening to them.