<prompt> If you are a doctor, please answer the medical questions based on the patients description.i am 63 indian currently on visit to finland north. underwent cab g 1.8.2012. the temp is 16 oc. i do yoga n walking each one hr. i feel slight numbness in the left side of the chest n stiffness in the sternum pl advice what is the problem if thr is one  <response>: Hello! Welcome and thank you for asking on Chat Doctor! I understand your concern and would explain that your symptoms are not typical of a cardiac disorder or ischemia. A prolonged chest pain and numbness is indicative of an extracardiac disorder. Is your pain modulated by respiration or body movements? This would be more indicative of a muscle skeletal pain. I would recommend consulting with your GP for a careful physical examination, a chest x-ray study, a resting ECG and cardiac ultrasound and some blood lab tests: -complete blood count-PCR, sedimentation rate inflammation-kidney and liver function tests-cardiac enzymes. Hope to have been helpful! Feel free to ask any other questions, whenever you need! Greetings! 