Hello,
Your symptoms of mild feverishness, chills, nasal congestion, throat irritation, and heaviness in the head for three days are suggestive of an upper respiratory tract infection (URTI), most commonly caused by a virus.
Other possibilities include allergic rhinitis or sinus inflammation. However, chills and feverishness favour an infectious cause.
Most uncomplicated viral respiratory infections improve within 7â10 days with supportive treatment.
Since you are 62 years old, monitoring your symptoms and temperature is particularly important.
Next Steps
Monitor your temperature and maintain adequate hydration. Use saline nasal spray or saline rinses to relieve nasal congestion. Take adequate rest and consider warm fluids for throat discomfort. Paracetamol (Dolo) may be used for fever or discomfort as directed, provided there are no contraindications. Avoid exceeding the recommended dosage. Consult a general physician, if chills persist. COVID-19 or influenza testing may be appropriate depending on clinical assessment and exposure history.
Health Tips
Avoid self-medicating with antibiotics, as they are generally ineffective against viral infections. Use caution with over-the-counter decongestants, especially if you have hypertension or heart disease. Seek medical attention if you experience breathing difficulty, chest pain, confusion, persistent high fever, severe headache, or worsening symptoms. If symptoms fail to improve over the next few days, further examination may be necessary. Wishing you a speedy recovery!