If you are taking pain reliever and have taken antibiotics and you are having
a reoccuring fever of 99.9 F or more, then this could indeed be
a problem. The only way to know if it is viral or you need an antibiotic is for the doctor to run some blood tests to see if your body is fighting off any illnesses. But also if you are on osteoporosis medications currently, the medication you are taking could be causing your symptoms.