12 days post op circumferential thigh/knee lipo. 2500cc. I can walk, but having excruciating sharp pain in my left knee, advice?

I’m 12 days post op from a circumferential thigh/knee lipo procedure. I originally was in an excruciating amount of pain but since then am able to walk decent and get around but I still have this agonizing sharp pain in my left knee. I’ve tried taking 2 Tylenol 500mg extra strength every 4 hours but it’s not working what’s so ever. Is it normal to have this much pain in my knee 12 days after surgery. I’m in so much pain and have to wait for the holidays to be over to see my surgeon.