I have, sore throat, chills and fatigue which disable me from getting out of bed, but normal temp 36.8. is this more likely to be flu or common cold?

Hard to guess: New throat pain can be strep throat (antibiotics are needed), a cold or influenza (antivirals may be used), or from some other cause such as allergies or irritants. Usually, a person sees the doctor if the sore throat is bothersome, recurrent, or doesn't go away quickly (to see if a prescription is needed). With chills and lots of fatigue, it's more likely a flu-like illness or strep throat.