<s>[INST] My son has severe longterm pain in head and back. He currently is seeing an internist who sent him for a echo cardiogram. He has been put on oxycoton some time ago and has had heavy pain meds over the last few years. Last week he was in such severe pain and so weak he hardly left his room or ate. Then he rallied and was able to be up for some time and function slowly. Today his feet are red on top like they are sunburned and have white spots. Is this something to do with circulation or his heart? He is 33. Just wondering if we should be taking him to emergency or if it is nothing to be concerned about. [/INST] Hello! Welcome and thank you for asking on Chat Doctor! I passed carefully through your question and would explain that his symptoms are not typical of any cardiac disorder. Chronic inflammation or a rheumatism disorder (like polymyozitis) could be the cause of such clinical scenario. For this reason, I would recommend consulting with his physician for a careful physical exam and some tests: -a chest X-ray study - complete blood count- a resting ECG-muscular enzymes (CPK, LDH)- PCR, ESR for inflammationOther tests may be needed. Kind regards,  </s>