Headache
A lot of people live stressful lives from the moment they wake in the morning to the instant they fall asleep at night. This means that you might think that persistent headache is completely ordinary. Not a threat, whatsoever.
A headache that doesn’t disappear could be a symptom of a virus. Research points to headaches being connected to sinus pressure and immune responses. If your headache is severe and not limited to just the head or neck, start considering if you have been infected with a virus.
