It's been 5 days since I've been in this pain. I decided to be active and run our subdivision and run in the treadmill. Ever since then I've been in pain. I went to the doctor and he said that its tendinitis and I've done something to my patella. He wrote me out a pain reliever. It's not working at all. My knee is swollen and I feel like something is moving even when it shouldn't. I'd love for some advice to know what to do.