Hello, I am a 16.6 years old healthy male with no underlying medical conditions, for the past week I had and still have a constant feel of fever throughout my entire body that has been getting worse and worse. However, the thermometer results did not indicate actual fever (36.5 degrees Celsius PO mostly). Is this a sign of a development of a viral infection and should I get it checked? Other than the fever I feel slightly weakened, and have a light headache sometimes. Thank you!