6 Weeks After Radiesse, it's Effects Are Gone?

Six weeks ago i had radiesse two syringes,i am 46 by the way.Any ways i wanted ny nose to mouth done,and the nurse injected around my cheeks,although i still had nose to mouth lines but my cheeks looked good,i would look at my face everyday and actually loved my cheeks,but now six weeks later its gone yes it is.What happened?i am due to go back to her for a follow up what do i say?Of course she will say yes there is a difference,but i know its my face and yes its gone, two syringes were enough