Fatigue Symptoms

Often, (not Every Time) A Few Hours After I Kiss My Gf I Get Fever Like Symptoms Such As Muscle Soreness And Fatigue. These Symptoms Last For A Night And Dissapear In The Morning And Never Show Up Again Unless We Kiss Again. My Gf Doesn't Have Any Symptoms And Is In Good Health, This Does Not Seem Like MONO Because MONO Only Happens Once In Life Time And The Symptoms Last For Few Weeks Not Just One Night.