Chest pain. Pain related to chest pain?

Have consulted many cardiologist, had normal ecg, echo, but high cholesterol and bmi of 26.8 , i am having on and off chest pain since 2 months , also while i have chest pain i have acidity, so it can be true, but apart from heartburn there is also an muscular pain on right and left side of sternum on twisting my upper body while exercising it increases and after sometimes with rest it decrease. I have perfectly normal vit d and vit b12, used ointment but they didnt work, even had a 20 day course of zerodol and flexura, it got improved after medicine but it returned after a week or so, also i forgot to ask cardiologist about the pain on right side of chest which radiates in arm and shoulder i dont know if its same pain or just normal shoulder and arm pain, is right side pain related to chest pain? And the chest pain i am having is it normal due to exercising because i have started to exercise regularly after like a year and so i used to be sports player gained lot of weight,cholesterol