I had similar last October. My knee was feeling so good after I left the out-patient clinic that I walked on, did not elevate it or give it any special treatment. Then the inside deadening wore off. My advice is to go home and elevate imediatedly and start with the ice. I think my recovery was worse because of this. Also, my daughter went out and bought me some Depends to wear at first because you just can't get up and run to the bathroom when you need to. Slow going. Good luck. You are in my prayers.