<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing arm and leg pain recently, can you tell me whats going on?  <response>: Based on your symptoms, it is possible that you are suffering from Vertebrobasilar insufficiency which is caused by decreased blood flow to the back part of the brain due to a blockage or narrowing in the arteries that supply the brainstem and cerebellum. We need to run some tests to confirm this diagnosis. 