<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing severe neck pain, lower body pain, back cramps or spasms, and leg pain. Can you tell me what might be the problem?  <response>: Based on your symptoms, it seems like you might be suffering from Spondylitis - a type of arthritis that affects the spine and causes pain and stiffness. We can run some tests to confirm the diagnosis and start appropriate treatment. 