12. Headaches
Headaches are a common symptom that there is a disease in the body, regardless of the cause. Even common colds sometimes come with headaches. So does the more serious common flu. Coronaviruses in general, the SARS-CoV-2 in particular, can cause headaches along with the nasal congestion, and sometimes along with the fever, or both.
It is a known fact that sometimes a headache will occur even without a fever or nasal congestion, and yet for some unexplained reason the head hurts. Sometimes an elevated blood pressure causes it, sometimes it’s because of eye-strain, or it could even be a stroke. Regardless of the cause, a headache is an indicator that there is something wrong. COVID-19 is a possibility, but this can be confirmed only by laboratory tests. If headaches occur along with the other symptoms in this article, consider getting checked by a Medical Doctor.