I have an aching pain in the knee and hip of my left leg that is worse at night when I'm in bed. I don't see any swelling, redness and it doesn't hurt when I press the aching areas. This has been more or less ongoing for years, sometimes it's worse than other times, but I can't point to a reason. Just recently I've lost strength in the same leg. I can't walk up steps unless I lead with my right leg. I'm concerned about seeing an orthopedic specialist because they may recommend replacement surgery. I read that my symptoms may be caused by MS. Has anyone else had these symptoms? What treatment helped?