Yesterday I Swallowed/got Choked On A Chicken Bone (or Tough

Yesterday I swallowed/got choked on a chicken bone (or tough piece of gristle, not sure which) and I'm not sure whether I need to go to the ER or not. I cant tell whether it has completely passed through my throat or not. I feel a tightness in my chest still this morning and im starting to cough alot (almost pneumonia like symptoms but I wasn't feeling bad at all prior to this incident). I'm not having any difficulty breathing and I was able to eat breakfast fine. But the pressure in my chest is really starting to bother me and now I'm beginning to get a "metal like" taste in my mouth after coughing. What should I do?