Hi, I Got My Implanon Put In March 2012 And

Hi, i got my implanon put in march 2012 and it expired in march 2015 i haven't got it removed haven't had my period for the whole 3 years.. But i got it on the 8th of this month and ive still got it its been ten days now, since ive had it i haven't been feeling very well been having numbness and pins and needles in my left arm and pains in my chest do you think its because it hasn't been removed!!