About two weeks ago, I tripped, and my knees took the major impact. My right knee cap is tender to touch, it feels like a severe skinned knee. However, the skin isn t torn. I can t kneel down without pain in front of knee. Also, I m experiencing a strange deformed feeling in knee, upon kneeling. There is also, a popping sensation, while walking. I think it s odd, that I m still hurting after two weeks, if this is a bruised knee. Is it possible that I could ve fractured my knee cap?