<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing joint stiffness or tightness, excessive urination at night, pain during pregnancy, ankle pain, and wrist pain. What could be wrong with me?  <response>: Based on your symptoms, its possible that you have Hemorrhagic Fever. Its a viral disease that can cause joint pain and stiffness, as well as other symptoms such as excessive urination and pain in various parts of the body. I recommend that you undergo some tests to confirm the diagnosis, and we can discuss treatment options once we know for sure. 