Your question: Hi,i had a left knee replacement 7yrs ago,also untreated herniated disks which gave me a painful pinching by outer thigh and a little above the knee, it was not constant,went away a day or two later but for 3 weeks now its gets worse daily. It has not better. So painful that I have to hop. Could this be a pinched nerve? Nothing has work, morphine, lidocaine gel, hot cold packs, massage. Should I get to the emergency room asap. It s so uncomfortable that I feel like I want to cut my leg off