Swollen, bruised looking ankles after being sick and having muscle pain. Thoughts?

This is related to a question I asked the other day. I had a virus with extreme sore throat and a bit of congestion but no fever or anything else. A bit of fatigue but not extreme. The same day I started to feel better I also started to have a lot of muscle/joint pain. Worse in the morning, much better during the day, worse again at night.

Well tonight I noticed my ankles are swollen and look bruised on one side. Also a little itchy. I am going to call a doctor tomorrow but does anyone know what this could possibly mean? Otherwise I feel pretty normal except for still having lingering pain and stiffness in my arms and legs.