i have pain on the inside of my left knee and unable to sleep. The pain increases when I climb down stairs, walk, squat, or sit for a long time. I have used pain killers to contain inflammation and the effectiveness of relief is reducing. However, there is no visible redness or swelling of the knee. I am taking Combiflam currently (one pill per day). Resting of the knee usually alleviates the pain. I had referred to Ortho Doctors and had two MRI and X-ray in the Knee area and in the hip area and he has cleared that every thing is good. The MRI of the knee joint revealed a small peripheral tear in the posterior horn of medial meniscus. But the doctor says that is not an issue and the tear would heal on its own. He suggested quadricep strengthening exercises initially. I was doing the exercises for 2 weeks but noticed an increase in the pain. I went back to him but he is unable to arrive at a conclusion on the exact cause for the pain. He has suggested to use Disprin twice a day for 10 days and to stop medicines for 20 days and then refer to him for observation. I am aged 21 and I have this condition for the past six months. I work as a software developer so I sit in front of the computer for atleast 6 hours everyday.