<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been having a lot of joint swelling lately and my knee feels weak. Ive also noticed a stiffness in my leg and sometimes I experience cramps or spasms in my knee.  <response>: Based on your symptoms, it sounds like you may have a tear in your knee ligament or meniscus. Well need to do some tests to confirm, but we may need to explore surgical options for repair. 