<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing a lot of different types of pain lately. I have a headache that wont go away, my knee has been bothering me, and my back has been in a lot of pain. Ive also been having sharp abdominal pain and I ache all over. What could be causing this?  <response>: Based on your symptoms, it sounds like you may be suffering from a chronic pain disorder. This is a condition where someone experiences ongoing pain that cant be fully explained by an injury or underlying medical condition. Well need to explore further to see what treatments might be helpful for you. 