HI THANKS FOR POSTING YOUR QUERY. I FEEL CONCERNED TO ANSWER,AFTER HAVING READ YOUR CLINICAL PROFILE. I WOULD LIKE TO PUT YOU ON A HIGH ALERT TO INVESTIGATE YOUR CHEST PAIN FURTHER,CONSIDERING YOUR POST ANGIOPLASTY/POST CABG-BYPASS STATUS 2000. SYMPTOMS OF CHEST PAIN RADIATING TO HAND LIKELY TO BE CARDIAC IN ORIGIN .POST EXERTIONAL PAIN IS REFERRED TO AS EFFORT INDUCED ANGINA THIS PAIN COULD ARISE DUE TO RESTENOSIS OF THE INSITU STENT,OR FRESH BLOCKS ARISING IN NEW VESSELS,OR PROBLEM WITH BYPASS VESSEL. A PAIN OF THIS DEGREE HAS TO CONSIDERED SIGNIFICANT. STRICTLY FURTHER ASSESSMENT OF THE CONDITION OF THE HEART AND ITS BYPASS VESSELS HAS TO BE ORDERED. THIS CAN BE ACCOMPLISHED BY AN ELECTROCARDIOGRAM,A 2-DIMENSIONAL ECHOCARDIOGRAM,FASTING BLOOD LIPID PROFILE ,BLOOD GLUCOSE. RENAL PROFILE,COMPLETE URINE EXAMINATION AND RENAL ULTRASOUND HELPS TO DOCUMENT THE CAUSE OF BORDERLINE CREATININE LEVELS. ANY CARDIAC CONTRAST PROCEDURES CAN BE CARRIED OUT ON A BORDERLINE CREATININE LEVELS,TAKING SPECIAL PRECAUTIONS. I REQUEST YOU TO THOROUGHLY MONITOR YOUR BLOOD PRESSURE ON A PERIODIC BASIS.GET REVIEWED YOURSELF WITH ABOVE INVESTIGATIONS AT THE EARLIEST.CONSULT AN EXPERT CARDIOLOGIST. CONCLUSIVE OPINION: NEEDS URGENT REVIEW THROUGH TESTS TO DETECT ANY NEW HEART ATTACK AT THE EARLIEST. THANK YOU. TAKE CARE.