10 Best Hematologists in Istanbul

A white blood cell count at 12,800 with neutrophils at 42% and lymphocytes at 45% indicates the possibility of an infection. The symptoms may be such as the fever, the fatigue, and body aches. The reasons can be a bacterial or viral infection. Stay home, drink fluids, and eat well. If the symptoms are getting worse or not disappearing, you have to see a doctor immediately.

If you still have a headache, fever, and muscle aches after taking medicine, you might have malaria. The malaria parasite can sometimes resist certain drugs. You should see a doctor immediately so that they can change your treatment and make you feel better. Don't delay—get checked out as soon as possible. 

It is good that your ELISA test results at 42 days are negative, and your partner also tested negative at 22 days. Since you have protected sex, the risk of HIV transmission is very low. However, for your peace of mind, you should follow up with your doctor. Consulting a specialist in infectious diseases can help address your anxiety and provide further reassurance.