I donno if my chiropractor is bullshitting me just so he can keep another client. Let me know what you think: I have some pain around both knees. My chiropractor took an X-ray and found "right sacroiliac joint fixation causing bio-mechanical strain to lower extremities. Subluxation of 5th lumbar." On top of the knee pain, my legs have been weaker and unsteady in general, and I sometimes feel pain shooting down my left leg. While I can accept that a messed up sacroiliac joint can cause the shooting pain, I'm less certain about its affect on my knees. I'll describe my injury. It happened last summer, when I abused my back deadlifting and squatting too much weight (I did mostly sumo deadlifts because I'm tall and thin). Consequently, I had some lower back pain, but that was recovering on its own so I wasn't really bothered. However, my left knee started to feel strange a few weeks after I stopped lifting (because of school). It wasn't a painful sensation, but felt more like an unusual tension around the knee joint. For the next few weeks the discomfort became more apparent and my knee started to hurt after walking. Soon, I was reduced to always walking at half speed with a slight limp. I went to see a orthopedist, who X-rayed and MRIed my knee and saw nothing wrong (except a slight outward-shifted kneecap). Soon, my other leg was having the same problem. I also noticed that my legs were becoming weak and unsteady. I tried acupuncture (on the knees) and acupressure (on my lower back) with no improvement. Finally I went to a chiropractor and he gave me the diagnosis I described above.