What could be the reason for a fever, headache, body ache, and difficulty swallowing?

Hello,

Welcome to icliniq.com.

If you are experiencing discomfort while swallowing, body pains, low-grade fever, and headache, it is possible that you may have a viral or bacterial infection. These symptoms can be caused by a range of conditions, including the common cold, flu, strep throat, or COVID-19. In the meantime, it is important to rest, stay hydrated, and take over-the-counter pain relievers such as Acetaminophen or Ibuprofen to relieve your symptoms. It is also important to practice good hygiene habits, such as washing your hands frequently and covering your mouth and nose when coughing or sneezing, to prevent the spread of any infection.

I suggest you follow the below instructions-

Warm water gargles.

Steam inhalation.

Plenty of oral fluids.

Thank you.