Hi, I'm a 19 year old female and I have been feeling feverish for about three days now. I have headaches and I feel like my head is hot, but whenever I test my temperature, it reads between 36.4 to 36.6 degrees. I also have nausea. I recently pierced my ears and I have a bit of an infection (little bit of pus). I'm wondering if me feeling sick is due to the mild infection or due to a bug. Would love it if someone could provide some answers. Thank you!