Feeling hot on the body, experiencing chills, but no fever—what could be the cause?
Feeling hot in the body while experiencing chills without an actual fever may be caused by physiological factors, or it could be related to pathological conditions such as upper respiratory tract infection or hyperthyroidism. The specific analysis is as follows:
I. Physiological Factors
During ovulation, hormonal levels fluctuate and may stimulate the hypothalamic temperature regulation center, leading to a sensation of body heat accompanied by chills. However, body temperature remains within the normal range when measured. This is considered a physiological phenomenon that typically does not require special intervention and will gradually resolve after the ovulation period ends.
II. Pathological Factors
1. Upper Respiratory Tract Infection
This is usually caused by viral or bacterial infections. After pathogens invade the body, they release endogenous pyrogenic substances, disrupting normal thermoregulation and potentially causing fever. In the early stages of fever, individuals may feel hot yet experience chills, even though body temperature might still fall within the normal range. Patients should follow medical advice for treatment with medications such as Oseltamivir Granules or Amoxicillin Capsules, and may also use physical cooling methods to reduce fever.
2. Hyperthyroidism
This condition primarily results from excessive production of thyroid hormones, which accelerates metabolism and increases systemic excitability. Symptoms may include warm skin, feeling cold, tachycardia, and others. Patients can take medications such as Methimazole Tablets or Propylthiouracil Tablets under medical supervision.
In addition to the above causes, this condition may also be associated with anxiety disorder or depression. It is recommended to seek prompt medical evaluation at a hospital and receive targeted treatment from a healthcare professional.