<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have pins needles across my chest and starting to go down my left arm, the sensation started this morning and comes goes within a few seconds. I am a dibetic have had heart surgery could you give me some idea what might cause it. I am a 76 year old male reasonably fit walk often play golf twice a week.  <response>: Hello! Welcome to Chat Doctor, and thank you for your question! I understand your concern, and would explain that your symptoms coupled with your past medical history are very concerning for a possible coronary artery disease. I recommend going to the ER for a careful physical examination, a resting ECG, a chest x-ray and some lab tests : fasting glucose, complete blood count, kidney and liver function tests, blood electrolytes and cardiac enzymes to exclude possible acute coronary disease. Further, tests like a coronary angiography, etc. may be needed if suspicions are raised. Hope to have been helpful! Best wishes, 