I am having deep muscel or nerve pain in the back of my thighs and THE BACK AND LEFT SIDE OF MY KNEE down the front of my leg to my ankle all in my left leg. Dr. has ruled out pinched nerve in my back. It is particularly painful when I am driving or seating in the passenger seat of the car. I am scheduled to see a knee Dr this week, however, since the pain is in my thigh it may be a waste of time. I am looking to find the right physician to see to diagnose and treat this pRobles. 7 I want to go on a road trip, but it becomes very painful and uncomfortable.