<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing weakness in my legs, and I also feel a tingling sensation in my arms and legs. Moreover, I have been having pain in my hands and fingers. I also had a fever a few days ago, and I feel facial pain occasionally. What could be the problem?  <response>: Based on the symptoms you have described, it is possible that you have Guillain-Barre Syndrome. This is a rare but serious neurological disorder that damages the nerves in the body, leading to weakness, tingling sensation, and pain. I recommend that we run some tests to confirm the diagnosis and start treatment as soon as possible. 