Dear Raghavendra ,the symptoms that you have told seems due mainly to cardiac reasons, because musculoskeletal pain may although cause soreness but the type of discomfort you are complaining is not usually there. I would recommend you to have a second opinion from a another cardioilogist regarding your problem before labling it as muscle pain
Next Steps
Consult a cardiologist different from you present one to have a frank second opinion
Health Tips
I am not telling you to distrust your present cardio, its only that sometimes second opinion helps