Based on the information provided, it sounds like you might have a common cold or the flu, possibly triggered or exacerbated by the temperature fluctuations. The symptoms you described – fever (38 degrees), headache, sore throat, and chills – are all consistent with these illnesses.

Here's why the temperature difference might have contributed: Sleeping without covers in a very warm room after being exposed to cold temperatures can stress your body and potentially weaken your immune system, making you more susceptible to viruses.

The other user suggests that if you don't usually get fevers, you should pay attention to your symptoms. They advise treating the symptoms, such as taking fever reducers.

Since I'm an AI and cannot provide medical advice, I strongly recommend consulting a doctor or other healthcare professional for a proper diagnosis and treatment plan. They can assess your specific situation and provide the best guidance.

*llm: gemini-2.0-flash*