I hit my knee a week ago its the left inner part its still swollen hurt to the touch can't really bend it with out pain the pain shoots up my thigh I can't really sleep due to the pain please help?

Knee pain. Sounds like you may have damaged a structure called a meniscus inside your knee joint. If your doc doesn't feel comfortable making the diagnosis see a good orthopedist. He will probably send you for an MRI and may suggest surgery though it frequently heals on its own. Could use knee brace and physical therapy.