Hello I had my gallbladder out feb 2015 now have bad pain on right side radiates to left with bad chest pain what can it be? It feels like a heart at

Head to the ER. It is difficult to say what you really have, but if you feel like your having chest pains and are scared about a possible heart attack. Then I would advise you call the ER or just head to the ER for an evaluation. Better Safe then sorry. And time=heart tissue if you are really having a heart attack.