Temperature Fluctuations: When to Seek Medical Attention

Q: Temperature Fluctuations: When to Seek Medical Attention

Dear Ms. Li Hsin-yun： 1. Humans possess physiological mechanisms to regulate and maintain core body temperature. When there is a need to release excess heat, the body cools down by increasing blood circulation to the skin and sweating. Conversely, to retain int

Body temperature issues

Hello, I am 27 years old.
My usual body temperature measured with a home thermometer is around 36.5-37.5 degrees Celsius.
However, for the past two days, it has suddenly dropped to around 35-35.5 degrees Celsius, accompanied by symptoms such as headache, dizziness, weakness in my limbs, and increased appetite.
Today (February 12), before leaving the house, my temperature was 35.3 degrees Celsius.
While taking the bus to the clinic, my temperature suddenly rose to 38 degrees Celsius.
After returning home, I sweated and measured 37.5 degrees Celsius, but within 10 minutes it dropped to 36 degrees Celsius, and then another 10 minutes later it went back down to 35 degrees Celsius.
What could be the issue (I haven't changed my clothes, only removed my hat)? Should I go to the emergency room? The clinic doctor prescribed the following for throat inflammation: mubroxol, medicon, amoxicillin, and advised using ibuprofen for fever.

Li Xinyun, 20~29 year old female. Ask Date: 2024/02/12

Dr. Xiao Yongxun reply Family Medicine

Dear Ms.
Li Hsin-yun:
1.
Humans possess physiological mechanisms to regulate and maintain core body temperature.
When there is a need to release excess heat, the body cools down by increasing blood circulation to the skin and sweating.
Conversely, to retain internal heat, the body reduces blood circulation to the skin to minimize heat loss or generates heat through shivering reflexes and peripheral vasoconstriction.
2.
Hyperthermia refers to working or engaging in activities in a hot environment for an extended period, exceeding the body's ability to sweat and regulate temperature.
However, the most common cause of fever is infection; other potential causes include autoimmune diseases, tumors, trauma, medications, pregnancy, and ovulation.
3.
Your condition is clinically considered an acceptable variation and does not meet the criteria for emergency registration.
If you have further questions, please discuss them with your attending physician.

Reply Date: 2024/02/12

More Info

Hello! Thank you for sharing your concerns regarding your fluctuating body temperature and associated symptoms. Based on your description, it seems you are experiencing a range of temperatures, along with symptoms such as headache, dizziness, weakness, and increased appetite. Let's break down your situation and discuss when it might be appropriate to seek medical attention.

Firstly, it's important to understand that normal body temperature can vary from person to person, typically ranging from about 36.1°C to 37.2°C (97°F to 99°F). Your usual readings of 36.5°C to 37.5°C fall within this normal range. However, the sudden drop to 35°C to 35.5°C is concerning, especially when accompanied by symptoms like headache and dizziness.

The symptoms you are experiencing could be indicative of several conditions. A body temperature below 36°C (hypothermia) can occur due to various factors, including prolonged exposure to cold environments, certain medical conditions, or even the effects of anxiety or stress. On the other hand, the sudden spike to 38°C (100.4°F) suggests a possible infection or inflammatory response in your body. The fact that your temperature fluctuates significantly within a short period could be due to several reasons, including:
1. Infection: Viral or bacterial infections can cause fever and other systemic symptoms. The medications prescribed by your doctor, such as amoxicillin (an antibiotic), suggest that they suspect a bacterial infection, possibly of the throat, given your symptoms.

2. Dehydration: If you are not adequately hydrated, it can lead to fluctuations in body temperature and symptoms like dizziness and weakness.

3. Environmental Factors: Changes in your environment, such as moving from a cooler area to a warmer one, can also affect your body temperature.

4. Anxiety or Stress: Psychological factors can sometimes manifest physically, leading to symptoms like dizziness and fluctuations in body temperature.

Given your symptoms and the significant temperature changes, it is advisable to monitor your condition closely. If you experience any of the following, you should seek medical attention promptly:
- Persistent high fever (above 38.5°C or 101.3°F) that does not respond to over-the-counter medications like ibuprofen.

- Severe headache that does not improve with medication.

- Dizziness or fainting spells.

- Signs of dehydration, such as dry mouth, decreased urination, or extreme fatigue.

- Any new or worsening symptoms.

In terms of your current situation, since you have already consulted a doctor and received medication, it would be wise to follow their advice. If your symptoms worsen or you feel significantly unwell, do not hesitate to visit the emergency department. It's always better to err on the side of caution when it comes to your health.

Lastly, regarding your temperature measurement, ensure that you are using a reliable thermometer and following the manufacturer's instructions for accurate readings. Fluctuations can also be influenced by the time of day, activity level, and even the method of measurement (oral, rectal, or axillary).

In summary, while your symptoms may not immediately indicate a severe condition, the combination of low body temperature, fever, and other symptoms warrants careful monitoring. If you have any doubts or your condition changes, seeking medical attention is always the best course of action. Take care, and I hope you feel better soon!

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