<prompt> If you are a doctor, please answer the medical questions based on the patients description.Dear Doctor Good evening. My father age 65 is having pain on his left arm for last 3 days not able to lift his hand properly or not able to rotate his hand... checked with our family doctor.. got some pain killers but the pain still continues... is this may cause a stroke... or Heart attack etc..  <response>: Hello, Welcome to Chat Doctor. Thank you for providing the brief history. What I can understand with the history is your dad may have either of possible problems - polyarthritis of the shoulder or RCI. I will advise to use icing if your dad isnt diabetic. If he is diabetic then use hot water fermentation. Having sessions with guided physical therapy should help reduce pain, regain strength, improve the ROM. It is definitely not a stroke or heart attack. Be assured. Regards 