Chest pain covering whole rib cage area.

Hi all, my father is suffering from a chest pain from 2 months onwards that chest pain is passing through whole rib cage area like lungs area backside and front side on may month we did angiogram also no blocks a where found after that he faced three times again the same pain last week he got same pain we admitted in hospital one doctor told he is having high bp so he faced this issue and given some treatment for bp tablets and nicorndal after 1week he felt the same pain today we went to gastro doctor he did endoscopy and abdominal scanning he said there was a small stone in the liver area gall bladder like that he told so he was feeling that pain like that he intimated my doubt is he suffering from high bp or that liver area stone pls suggest which specialation to meet totally confused and in dilemma