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Internal fever is the sensation that the person has that the body is very hot, although the thermometer does not show an increase in temperature. In such cases, the person may have the same symptoms as in the case of a real fever, such as malaise, chills and cold sweat, but the thermometer remains at 36 to 37ºC, which does not indicate fever.
Although the person complains that the body feels very hot, in fact, internal fever does not exist, it is just a popular way for people to express that they have the same symptoms that are present in a common fever, but without the rise in temperature be felt in the palm of the hand, nor proven by the thermometer. See how to use the thermometer correctly.
Symptoms of internal fever
Although the internal fever does not scientifically exist, the person may present common signs and symptoms of appearing in the fever, which is when the body temperature is above 37.5ºC, such as feeling of heat, cold sweat, chills or chills throughout the day, malaise, headache, tiredness and lack of energy.
However, in the case of internal fever, although all these symptoms are present, there is no rise in temperature that can be measured. It is important that the person is attentive to the duration of the signs and symptoms and the appearance of others, as it may be necessary to go to the doctor for tests to identify the cause of the fever and, thus, start the treatment.
Main causes
Emotional causes, such as stress and anxiety attacks, and women's ovulation during the fertile period are the main causes of internal fever. However, the person may also feel that they have a fever after exercising or some kind of physical effort, such as carrying heavy bags or climbing a flight of stairs. In this case, the temperature usually returns to normal after a few minutes of rest.
At the beginning of a cold or flu, malaise, tiredness and a feeling of heaviness in the body are frequent, and sometimes, people refer to the sensation of internal fever. In this case, taking a home remedy, like ginger tea, very warm, can be a good way to feel better.
What to do in case of internal fever
When you think you have an internal fever, you should take a warm bath and lie down to rest. Often the cause of this sensation of fever is stress and anxiety attacks, which can also cause tremor throughout the body.
It is only indicated to take some medicine to lower the fever, such as Paracetamol or Ibuprofen, if instructed by the doctor and when the thermometer records at least 37.8ºC. As in the case of internal fever, the thermometer does not show this temperature, you should not take any medicine to try to fight a fever that does not exist. So, if necessary, you should just remove excess clothes and take a bath with warm water, to try to lower your body temperature and relieve discomfort.
If symptoms persist, you should go to the doctor for a physical exam to find out what may be happening. In addition to blood and urine tests, the doctor may also order a chest X-ray, for example, to check if there are any lung changes that may be causing this sensation of fever and discomfort.
It is advisable to seek medical help, when in addition to the sensation of internal fever, the person has other symptoms such as:
- Persistent cough;
- Vomiting, diarrhea;
- Mouth sores;
- Rapid rise in temperature to above 38ºC;
- Fainting or decreased attention;
- Bleeding from the nose, anus or vagina, with no apparent explanation.
In this case, it is still important to tell the doctor all the symptoms you have, when they appeared, if something changed in your diet or if you were in another country, for example. If there is pain, it is still advisable to explain where the body is affected, when it started and if the intensity has been constant.
Check out how to download the fever in the following video:
What is fever
Fever is a natural response from the body that indicates that the body is fighting infectious agents such as viruses, fungi, bacteria or parasites. Thus, fever is not a disease, it is just a symptom that appears associated with many types of diseases and infections.
Fever is only really harmful when it is above 39ºC, which can happen quickly, especially in babies and children, and cause seizures. The low fever to 38ºC, is considered a temperature rise or simply a feverish state, not being very serious, just indicating that you need to be alert and remove excess clothes to try to cool your body to the normal temperature of 36ºC or take a medicine to lower the fever, in addition to other natural methods to normalize the body temperature.
See when and how to know if it is fever.