Rib cage pain. Day by day in my body.

I have chest pain since last 2 years. I am unable to detect myself whether it is a rib pain or something else. I had an accident before 2 years, don't understand if any fracture has occurred within my ribs that time. Also unable to say that the reason behind the pain is this accident. It gives me a pain frequently while twisting the body and also when I lift something heavier. I am afraid that the pain shouldn't be related to any heart related problems or a bone Cancer etc. I want the best doctor to take care of my problem and diagnose my pain with their best practices. I don't want my ignorance towards this pain would result in any major issue with my life. Because I can't even say that the pain has started after accident, it is developing day by day in my body.