<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing ankle pain, knee swelling, foot or toe pain and my nails seem to be irregular. What could be the problem?  <response>: It seems like you may have suffered an injury to your leg, which could have affected your ankle, knee, foot, and toe. The irregular nails could also be a sign of damage to the toe area. 