<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been having some symptoms lately. I had a nosebleed, and I have a lump on my knee. Additionally, I noticed a sore on my vulva and I have been experiencing chills. What could be causing all of this?  <response>: Based on your symptoms, it is possible that you have lymphogranuloma venereum. This is a bacterial infection that is transmitted through sexual contact. I recommend that you get tested and treated as soon as possible to prevent any complications. 