It's easy to really have a fever. From the perspective of traditional Chinese medicine, "cold wrapped in fire" is the easiest to have a fever. First of all, eat more food that makes people angry (everyone is different, some people eat oranges and some people eat mutton, depending on your own situation), and then stay in a warmer room for a while, and it is best to sweat a little. Finally, you suddenly catch a cold, and 80% will have a fever. It is ok to wash your hair with cold water, but only if you have a fire in your heart.
If you pretend to have a fever, one way is to rub the thermometer hard with your hands, which will easily reach the fever temperature. Also, you can put two more hot water bottles under the bed, and it is best to add an electric mattress to raise your body temperature. Take your temperature before sweating heavily. You must have a fever.
Take a basin of ice water from the refrigerator, stand naked on the balcony, pour ice water on yourself, don't go away, let the wind blow, catch a cold in a few minutes, and then have a fever, but I hope the landlord won't do this. After all, health is capital!