I Had A Knee Replacement Two Wks Ago I've Had

I had a knee replacement two wks ago I've had a fever 103 102 and 100 today no redness drainage or extra pain in knee no fever since 7pm but the last hour have had cold sweat with no other symptoms orthopeadic dr wanted me to come in tomorrow but I can't make it til thurs I take 40mg oxycontin er bid and oxycodone 30 six x a day