Hi I am new to this site I have had osteoarthritis of the knee for about 5years the last year has been extremely painful having steroid injections does not seem to be working. Over the last two weeks the pain seems to be fluctuating the pain goes for a couple of days then returns is this part of the symptoms. My GP was discussing knee replacement. Just really confused as to why lately the pain comes and goes. I would be grateful for any advice.