You have some sort of infection probably, you really should see your doctor.
I Have Low Grade Fever Past Two Months Please Tell Me Somebody What Is The Reason,temp Is 99.5,99.7,99.9?
it depends on what other sys-toms you have . Females can have body temps with menopause , first rule out infection see your doc.
What else with the fever? Have your doctor run a blood test to check for viruses.God Bless