I have a slipped disc and crushed nerve in c5 with sciatic problems. My left leg is numb and the knee area is worst affected, along with numbness and fluctuating pain In the thigh and groin. This has been a long road as I collapsed just 4years ago losing the feelings in my legs. I was very fit at the time and have lost muscle on the inner thigh. The past few weeks I have been experiencing tightness in the chest and kneck muscles along with added tightness in the left outside knee and calf. And I find it increasingly difficult to relax.