On some random days my left knee joint starts paining at a particular point and on the days this happens I start feeling unwell in the evening and get shivers and chills during the night. My body temperature rises during that time time time too. But then in the morning I wake up with almost normal temperature and next to no pain in the knee joint. After one or two days of relief this starts again. The pain was ignorable earlier but now it has become unbearable.