Hi..Ive Got My Period Twice On October On First Time,then

hi..Ive got my period twice on october on first time,then missed on november,nd twice again on december,but I got made a pregnancy test on november is negative..but pls I fill something in me like something stick on my chord.fill full,just a little bit I can eat then enough for me..even I hate coffee,but now thats the only thing I like the most..pls dr I need your help..