i have knee swelling and having to walk with slight limp. how long should i wait to see a doctor? i am icing at night. i have had previous surgery from sports on this knee for {loose body broken bone chips} and about ten years later to smooth some of the bone around knee. I dont wanna jump the gun for a little pain and swelling, i have this happen from time to time. I just dont want any long term damage if i wait. this is a little different than any issues ive had from over doing it in exercise or whatever. it does feel feverish ..