My body temperature has been low for 4 days?!?

My body temperature has been low since Thursday. Thursday it was 97.2, Friday 97.8, Saturday 97 and today it is 97.8. Any ideas what it could be? I Have a sore throat, runny nose and overall achy body. I have not been exposed to any dangerously cold climates lately and am not on or anywhere near the time I would be on my period. Im kind of wondering whats going on? Thank you and Luv4ever!