Hi.. Ur age is small to start with calcium pills... try to maintain it with ur food.. as once u start wirh the pills then u have to take them often to beat that level of calcium in ur body.. At the age of 22 u can follow little strict diet for 2-3 months... U are fatty n u loose ur wieght... there u are... As u reduced weight ur body is craving for the amount of calcium and vvitamins,,, Take a work in 7:30am sun, all meals on time3-4 lits of water...u should be fine..!