question: I been having a low grade fever (99.4 to 100.4) for about 2 weeks now.  Normally my temp is usually around 97.5.  I am 49 and dont have any major health issues other than seasonal allergies and asthma.  I dont feel ill other than the fever and seasonal allergies.  Are my allergies the cause of my fever?  This pattern of having low grade fevers happens several times a year for a few years now.  What is causing my fevers?